I loved windows XP and Windows 7. They were a bit brittle regarding malware, but I was using a lot of pirated software at the times, so that may have been me. Win 8 was bad UX wise, but 8.1 resolved a lot of the issues. But since then, I barely touched windows.
I want a OS, not an entertainment center, meaning I want to launch a program, organize my files, and connect to other computers. Anything that hinders those is bad. I moved from macOS for the same reason, as they are trying to make those difficult too.
> I want a OS, not an entertainment center
Exactomundo! I'm a software developer, not a florist. I don't care about all those animations, transitions, dancing emojis, styled sliding notifications, windings and dingleberries. If I want to rebind a fucking key I should be able to. If I want to replace the entire desktop with a tiling manager of my choosing — that should be possible. And definitely, absolutely, in no way, should just about any kind of app, especially a web-browser, be shoved in my face. "Edge is not that bad", they would say. And would be completely missing the whole point.