God forbids you ever have to run a game with two or three frames per second less than on Windows. The horror! /s
Joking aside, DRM is the actual roadblock. And it’s not even Linux’s fault. Just stubbornness and lack of will from developers. Even then, it’s just a handful of AAA online games. For some, like me, it has zero effect in my enjoyment of games as I don’t play online competitive games. Every other piece in my library actually runs better on Linux no matter how old it is. As Wine/Proton holds a better backwards compatibility than windows 10. Games that no longer run on windows still run on a modern fully specced Linux. No hassle involved. And some modern games actually run as fast or better than on windows nowadays.