The games situation is pretty good nowadays, it is amazing just how well Proton can work. But if that one title you want is completely broken, I couldn't sell you Linux at all.

I have found it isn't usually the games that are the issue but the utilities. They are almost always alternatives but a lot of the time, you don't want the alternative - you want that specific program. Wine compatibility can be good but it can also be very strange. Notepad++ for instance, it works... but hits my systems CPU harder than GTA V. Go figure!