I have an old computer that runs Windows 7 "ultimate". I have been very happy with that system and it has never given me any problems. With Windows 10 has been a constant struggle to maintain my settings. Every time I get an update, it resets the system so that I have to struggle to get it to find my printer again (as an example) and I still haven't be able to get my printer's scanner feature to work again like it used to do. I never had that issue with Windows 7.
Windows Ten has not caused me any issues at all, other than putting it on an old notebook computer that can only have two megs of RAM. It works, but ridiculously slow. It was designed for Windows 7. You're probably best off to keep it with Windows 7 as I should have done with my old notebook computer.
The desktop computer I am using right now works perfectly with Win10. Never gave me any issues, has 8 megs of RAM, and fast. I use a wireless printer/scanner / fax combo that is located in a different work which also never gave me any issues.
I have no reason to even try Windows 11, but I still wonder what the advantage can be, if any, to anybody whose computers are okay with Win10.
-Don- Reno, NV