Ah sorry, it was lutris (the name escaped me). I've done all the combinations of wine and wrappers to wine. All of them have a sort of unstable relationship with the calling environment. alt-tabbing out of games never works, there are freezes and game crashes when you try to switch in and out of games a fluidly as you can on windows.

I believe you that steamos is better, but it's also a single task environment where you're not checking your email between rounds of halo.

I'll give proton a try, though i believe that was in play when i was laddering with lutris.