Why bother?
So, I have Windows 10 looking like Windows 7 (proper Start Menu button, use of Quick launch toolbar, etc.) and I'm happy with that. I got a new test PC which came with Windows 11. I eventually got it to look like Windows 7 with third party tools at which point it was "why should I upgrade my other PCs?"
So, I haven't bothered - and probably wont until there's a proper compelling reason to do so.
Alan