No bad experiences here. Have played a bunch for the last 3 years on games like Diablo 4, Overwatch 1 and 2 (Battle.net) and Dark Souls 3, Elden Ring, and plenty of other EAC titles with no issues. Specifically Lutris and Heroic are just frontend launchers and game managers and don't effect running the game.

Getting away with 100% Linux means accepting that there are some games you won't be able to play and as long as you're okay with that then go for it (Rust for example, is a game I wish they'd enable EAC Linux for but they never have).