This is probably why Microsoft has been aggressively pushing users to upgrade to Windows 11 after the previous version of the OS loses support -- so that its users would install the latest version of Windows on their current system (or get a new PC if their system is incapable of running the latest version).
Rather, "not allowed". Sure, my Dell XPS 420, that a friend gave me, is old, but it runs Windows 10 like a champ - though I did replace the HDD with a SSD; I imagine it would run Windows 11 just as well if not for the (arbitrary) hardware "requirements" Microsoft imposed for Windows 11. Same for my other systems. Instead of buying something new(er), I'll be switching to using my Linux Mint 22 system full-time instead - which is also old, but works great (i7-3770, ASRock Z77 Extreme3, 32 GB RAM, Samsung SSD).