Yeah, that's the bit I don't get. I have a 1st gen Ryzen 7 system (a self-build) and after enabling fTPM in the BIOS, it does pass the TPM part of the check. But of course it then fails on the fact that my CPU isn't on the supported list. Not quite sure why an 8 core 3.4GHz CPU that is under 4 years old is considered to be "unsupported" by MS, maybe they're just being lazy here.
The interesting part will be to see if MS's installer further down the line checks and blocks installation onto such silicon or not.