Currently on my main PC I'm running Windows 10, as a few games I play fairly often aren't supported on Linux. Got a Steam Deck running SteamOS, and an old Macbook running Pop!_OS.
Plan on eventually switching my main rig over to the Linux side, most likely Nobara with KDE.
Halo the Master Chief Collection, runs great, looks great, and the Halo campaigns are just super fun in general. Goes on sale for $20 often too.
Thought I'd update a lil. It's currently $10. I think it's a must buy at $10.