From Steam’s 2025 top X charts (https://store.steampowered.com/charts/bestofyear/2025?tab=3)

11/12 top selling new releases (the exception is battlefield 6, because the anticheat blocks Linux)

9/12 top selling (COD, BF6 and Apex block Linux)

11/12 most played (Apex blocks Linux)

So if you’re into competitive ranked games (especially fps), you might face problems due to anti cheat blocks, but practically everything else works