Main reason would be “why not?” windows is also working great for most common use cases. Actually there is not much difference nowadays between OSes. Another reason would be specific software like Excel. Why would you switch your OS adlnd most of the software you use if you don’t gain much from it.

I’ve a Linux OS for coding, OSX for work and Windows for gaming. There are absolutely no problems with any of them. Windows worked great last 4 years, no virusesor performance issues without anti-virus or tweaking. Linux drivers needed work at the start but now there is no issues, Mac is similar. Only issue is when I try to code with Windows it feels annoying but it is mostly because I’m doing things with CLI where I should have used GUI.

I like sandbox games where you can jump in any time and build further. If you are looking for a time sink like game, I’d recommend, Subnautica, Satisfactory, Factorio. I’d also recommend shorter games where you can just finish it in an evening without big commitment. Or rougelike, rougelite games where you can just finish a run, like Slay the spire, monster train, DCSS.

Lastly you don’t have to play most popular games, it is OK to play old games or lesser known ones. I play time to time HoMM3, might and magic series etc.