Hey man,
If you’re into classic shooters, I’d definitely recommend giving CS 1.6 a try. I still play Counter Strike 1.6 regularly on Windows 11 and it runs great if you get the right build. I personally use this version: https://cs-install.com/cs16-windows-11
It’s really easy to install, no issues with compatibility, and everything works smoothly right out of the box.
I’ve tried a few different versions before, but this one feels the most stable and clean. If you want that old-school competitive vibe, CS 1.6 is still one of the best.