There is an entire rewrite required, and some things do not play well with others. For instance, QB and Excel, as Microsoft tells us, don't install Excel-Office as 64-bit for ODBC reasons.

Quickbooks 2022 is the first 64-bit of QB Desktop.

I think it is too soon to have any expectation.

The best thing you can do with those systems is install maximum memory. I also shop only for Gamer systems, with the most and fastest GPU and memory. Disk speeds or SSD retrieval is not much of an issue; no human notices that.