Then we have different priorities, if I spend a lot of money on a gaming machine beefy GPU I want 100% of its performance at all times and no risk of problems cutting into my limited gaming time. If there is a problem on Windows you can be sure the game devs will give it a priority over a problem on Linux.
Been a Linux user for over 20 years, still use it for work, and yes Proton does look great, but I don't see using it for gaming anytime soon.