I was ready to do that back when I switched, but still found games to play. Back then, Steam hadn't yet come to Linux (I didn't even have an account), so it was mostly random indies (back when Humble Bundle was baller) and some FOSS games. I played a bunch of Minecraft and Factorio as well. Then Steam came and brought a few more games, then Proton came and I've been back buying a ton of games.

Switching to Linux is so much easier these days with the incredible game support.