If you use desktop QuickBooks, recent versions require annual subscriptions that are fairly expensive. However, versions 2022 or older continues to work, but you lose function to import bank transactions (QBO and IIF files).
Teapplix has built an QBO (quickbooks web connect file format) and IIF import facility, and also an mapping UI to match the imported bank transactions to invoices, bills, etc. This is accessed under QuickBooks->Bank Feed menu.
Once the transaction is mapped and approved, they will be imported to your QuickBooks during the next sync. Together, this basically replaces the QuikBooks "Bank Feed" feature.
This enables you to use an older version of QuickBooks without the annual payment, while still keeping the functionality to sync with banks.