A problem with QIF is it keeps changing. You might take a look at MoneyDance 2022. I have had good luck importing data from multiple different accounting apps, and just reverted back to it after a couple of years with the new Quicken (which is now a completely separate company from Quickbooks.) I reverted because MonayDance has adopted a new global standard for downloading bank data that is IMHO far superior to the one used by the current version of Quicken. MoneyDance 2022 imported all of my data from Quicken without a hitch.

If we knew what it was we were doing, it wouldn't be called research, would it?

— Albert Einstein