Rocket League works on CachyOS with Heroic Launcher, Epic games. Run with anti-cheat enabled (default) and wine version: proton-cachyos-slr. If it pop-out epic games in web to sign-in, confirm it. And before that I run Easy Anti-level cheat setip .exe just with launch (if it impacts on anything, excessive step). Unlocked new item as newcomer, played online (not locked 2v2, 3v3,…) and earned item. On areweanticheatyet.com it says it’s broken… Try it out, didn’t expect it to work, but it does work this way if you use Rocket League on Epic Games. Thanks for reading, and thank you for replies.