I haven't had a Windows for Gaming in 10 years. The first seven years of that, I haven't played many games. However, CS:GO, Factorio, Civilization and Stardew Valley, among others, all had native Linux support and I wasn't bored.
Then the Steam Deck and Proton came. I ticked a box in Steam settings to not restrict "Steam Play" to verified games, installed a Windows game and started it. It just worked. When Cyberpunk 2077 came out, Proton was updated in time and I launched Cyberpunk 2077, a demanding modern game, in my Linux Steam Client as if it was nothing special.
It's three years later and I'm still thrilled. You bascially don't have to care anymore. I still take a look into ProtonDB before buying a game, but I can't remember the last time it wasn't working (excluding Anti Cheat-Stuff for Multiplayer, but even that is being worked on).