There is no anti-cheat. Vanilla Proton 9.03 (as of 29th November 2024) worked out of the box. I have not tested with a gamepad. Mouse and keyboard support is perfect. No audio or visual glitches either.

Daily Challenges (online) does not work. It returns "Connection Error". Unsure if servers are broken (based on the developers history of terrible networking) or the game blocks Linux players from joining online mode.

Performance is okay. With my specs, I was able to get 60 FPS at Low settings at 720p. It's not Linux nor Proton's fault. The engine used for this game, KT Engine, has always been subpar in terms of performance. WRC 7 was their last optimized engine. Slightly off tangent here but I highly recommend WRC 7 for a casual rally game on Linux.