IMHO:
Linux or M$ with LibreOffice suite... no longer is there a compelling commercial 'need to have...' Microsoft.
This idiocy: intolerable Micro$oft denial of slightly older (i7 4790K for example) hardware policy, like the Apple and Compaq, old debate of architecture Open architecture versus Closed architecture will not pass...
It is a betrayal of users and potential upgrade customers. Obviously it will be moderated by reverse engineering force of course.
Always, it should be choice of users where to install, not dictat.
M$ will face such bad PR shitshow. Home goal 'footie' parlance.
So M$ ought allow with security caveats of 'user beware,' reduced promise and lower service guarentee etc.. but allow older CPUs and motherboards to install.
Simply, or the determinded will circumvent denial by install routine of new OS, it will be hacked and overcome obviously 😉