> I've noticed a notable performance penalty (around 10%, even higher on GPU heavy games) when running games with Proton, which is mainly why I haven't dropped Windows yet.
I don't mean to dismiss your comment at all, but I'm surprised that such a low overhead would be the primary reason holding you back from switching. The difference between, say, 100 FPS and 91 FPS seems so negligible in my mind that it would be pretty near the bottom on the list of reasons not to switch to Linux.
If you don't have an adaptive sync +variable refresh rate) monitor and everything set up to use it, and don't like screen tearing (you enable vsync wait), overrunning the frame budget (e.g 16ms for 60hz) can mean dropping down to half the frame rate.
But I'm hunting for reasons here. A gaming setup should be using adaptive sync so those concerns mostly go away. But there may be problems with Linux support.
I don't mean to dismiss your comment at all, but I'm surprised that such a low overhead would be the primary reason holding you back from switching. The difference between, say, 100 FPS and 91 FPS seems so negligible in my mind that it would be pretty near the bottom on the list of reasons not to switch to Linux.