OK, I'll give my mom in law my AMD 3700X and install Windows 11 on that one instead (and I'll buy myself a 7700X). Same thing: "Hardware not supported by Windows 11'. WTF. That 3700X is a recent machine. And the error message it totaly uninformative: it just says "hardware not supported".
Well, good thing a few years ago I made her switch her SME to Google Workspace / GSuite only. She and her employees are doing everything from the paid version of GSuite (something like 50 EUR / employee per year).
Guess what's installing atm on that 3700X for my mother in law? Ubuntu.
I dd'ed the .iso and the install starts just fine.
It's insane: you want to give 145 EUR to Microsoft for their ad-ridden and keylogger infested spyware of an OS but they don't let you. Unhelpful error message. Instead of saying what is not supported, they just say: "Hardware not supported".
So now it's going to be Ubuntu everywhere at her little SME and OS X laptops for when they're on the go.