It's funny how things turn out. The very day (Friday) we were talking about this topic, Microsoft does this:
https://www.theverge.com/22644194/m...m-system-requirements-processors-changesTL,DR MS will allow one to install win 11 on old unsupported hardware but not by upgrade. Has to be by clean/fresh install via ISO file. Also, they do not guarantee your experience on unsupported hardware will be very good and you may not be entitled to updates, even security updates.
FYI, that still does not stop one from taking a Win 10 drive out of old PC, putting it into a new PC, and then performing the upgrade to Win 11 (if one even wants to). That saves one from having to re-install everything from scratch.