Staying with W8 was not an option as there are no longer any security updates for it. If you are having problems with software not running on W10 then that is for the software provider to sort out, not Microsoft.
Windows 8 is end of life sadly, so yes security updates is a problem now. I meant Software not running on Windows 8 became a problem.
As a test, a few months ago I reinstalled Windows 8 on my PC and so much of my software would just not install.
UI on Windows 8 was awful, but as I said that was easy to solve with third party software, I used start is back, in fact I still use the updated version of start is back on Windows 10 as I hate the tiles start menu on Windows 10.
I found Windows 8/8.1 ran smoother than Windows 7 on my then AMD bulldozer machine. Windows 11 seem to feel the same way, the OS just seems more fluid and responsive than Windows 10.
I kind of like windows 11, there are some things that could be better, like being able to get rid of the large gap on the start menu when recommended section is turned off or the multiple search boxes.
At the end of the day it makes little difference now, Windows 8 is end of life and if you are worried about the lack of updates then yes you have to change, I know a couple of people who are still using Windows 7, and they still have no intention to change, myself for what they use their computers for and the age of the machine I would put a Linux distro on them, something like Mint, but up to them at the end of the day.
Adrian
Desktop machines Mac mini pro with macOS Ventura, also pc Ryzen powered with windows something or other.
Plusnet FTTC