<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0c529-889a-7754-b02e-800f3f119049,g:6956bb1c-0cbb-4644-9e9b-3f2aacf0c4fe-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://dfinsolutions.com/role/DocumentandEntityInformation" xlink:type="simple" xlink:href="infq-20260924.xsd#DocumentandEntityInformation"/>
  <link:presentationLink xlink:role="http://dfinsolutions.com/role/DocumentandEntityInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_01a0c529-889a-779c-9012-d3072b92312a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_infq_DocumentAndEntityInformationTable_01a0c529-889a-7df0-8c3c-c076bf746073" xlink:href="infq-20260924.xsd#infq_DocumentAndEntityInformationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a0c529-889a-779c-9012-d3072b92312a" xlink:to="loc_infq_DocumentAndEntityInformationTable_01a0c529-889a-7df0-8c3c-c076bf746073" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0c529-889a-708e-b2cc-05ff36f31a49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationTable_01a0c529-889a-7df0-8c3c-c076bf746073" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0c529-889a-708e-b2cc-05ff36f31a49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0c529-889a-7535-931d-15acf6f7ddc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0c529-889a-708e-b2cc-05ff36f31a49" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0c529-889a-7535-931d-15acf6f7ddc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_infq_CommonStockParValue0.0001PerShare2Member_01a0c529-889a-7eaf-b81f-fef698110124" xlink:href="infq-20260924.xsd#infq_CommonStockParValue0.0001PerShare2Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0c529-889a-7535-931d-15acf6f7ddc8" xlink:to="loc_infq_CommonStockParValue0.0001PerShare2Member_01a0c529-889a-7eaf-b81f-fef698110124" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_infq_WarrantsEachWholeWarrantExercisableForOneShareOfCommonStockAtAnExercisePriceOf11.50PerShare1Member_01a0c529-889a-7172-9ac3-ebcee4e4df78" xlink:href="infq-20260924.xsd#infq_WarrantsEachWholeWarrantExercisableForOneShareOfCommonStockAtAnExercisePriceOf11.50PerShare1Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0c529-889a-7535-931d-15acf6f7ddc8" xlink:to="loc_infq_WarrantsEachWholeWarrantExercisableForOneShareOfCommonStockAtAnExercisePriceOf11.50PerShare1Member_01a0c529-889a-7172-9ac3-ebcee4e4df78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:href="infq-20260924.xsd#infq_DocumentAndEntityInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationTable_01a0c529-889a-7df0-8c3c-c076bf746073" xlink:to="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a0c529-889a-7c23-ac08-47eae6266280" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_DocumentType_01a0c529-889a-7c23-ac08-47eae6266280" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a0c529-889a-7201-a7f7-903fc1230afc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_DocumentPeriodEndDate_01a0c529-889a-7201-a7f7-903fc1230afc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a0c529-889a-76df-9c15-0b986fd4059e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityRegistrantName_01a0c529-889a-76df-9c15-0b986fd4059e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a0c529-889a-73fe-982b-d927b2d01223" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a0c529-889a-73fe-982b-d927b2d01223" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a0c529-889a-7a00-b29e-96bd69f611c2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityFileNumber_01a0c529-889a-7a00-b29e-96bd69f611c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_01a0c529-889a-78da-85c7-059de11d37c6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityTaxIdentificationNumber_01a0c529-889a-78da-85c7-059de11d37c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a0c529-889a-7446-bf43-42d3e32f1da2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityAddressAddressLine1_01a0c529-889a-7446-bf43-42d3e32f1da2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_01a0c529-889a-7256-b3ec-22307195da3a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityAddressAddressLine2_01a0c529-889a-7256-b3ec-22307195da3a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a0c529-889a-7c43-a29c-e51c191e7133" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityAddressCityOrTown_01a0c529-889a-7c43-a29c-e51c191e7133" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a0c529-889a-7770-b455-4b1364a3b142" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityAddressStateOrProvince_01a0c529-889a-7770-b455-4b1364a3b142" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a0c529-889a-77ab-bb15-c5d2903487e6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityAddressPostalZipCode_01a0c529-889a-77ab-bb15-c5d2903487e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a0c529-889a-7c17-8d73-09dd3c150e7a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_CityAreaCode_01a0c529-889a-7c17-8d73-09dd3c150e7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a0c529-889a-7fb5-b481-631729bd6c68" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_LocalPhoneNumber_01a0c529-889a-7fb5-b481-631729bd6c68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_01a0c529-889a-717a-bfc1-834888f0f501" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_WrittenCommunications_01a0c529-889a-717a-bfc1-834888f0f501" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_01a0c529-889a-7cfd-90ad-8bdc24f7b60f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_SolicitingMaterial_01a0c529-889a-7cfd-90ad-8bdc24f7b60f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_01a0c529-889a-7ff1-9eb0-9426a6cf03b5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_PreCommencementTenderOffer_01a0c529-889a-7ff1-9eb0-9426a6cf03b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_01a0c529-889a-7d6a-b38d-8392c6f78eb7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_01a0c529-889a-7d6a-b38d-8392c6f78eb7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a0c529-889a-73a9-b441-b3e82869137d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_Security12bTitle_01a0c529-889a-73a9-b441-b3e82869137d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a0c529-889a-704f-94ff-340dee6a9ba1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_TradingSymbol_01a0c529-889a-704f-94ff-340dee6a9ba1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a0c529-889a-7a1f-a8a5-dc1d65293fc9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_SecurityExchangeName_01a0c529-889a-7a1f-a8a5-dc1d65293fc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a0c529-889a-7be1-b844-669961048d9c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a0c529-889a-7be1-b844-669961048d9c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_01a0c529-889a-759b-8350-1b87be7be0dd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityExTransitionPeriod"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityExTransitionPeriod_01a0c529-889a-759b-8350-1b87be7be0dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a0c529-889a-7aaa-ac1f-32f6319ceaa3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_AmendmentFlag_01a0c529-889a-7aaa-ac1f-32f6319ceaa3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a0c529-889a-7bb5-89ea-df1b17c70923" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_infq_DocumentAndEntityInformationLineItems_01a0c529-889a-78c1-8b14-d3aeab4f84c6" xlink:to="loc_dei_EntityCentralIndexKey_01a0c529-889a-7bb5-89ea-df1b17c70923" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
