I think It may actually work indeed !

I’m gonna retry it but initially it’s this post that made me think it was over for RL on linux :

epicgames.com/…/rocket-league-support-for-macos-a….

I will definitely try again in case it’s just Epic Games saying it won’t work but proton saving the day.

Thanks for the correction I truly thought Epic had killed linux RL via their anticheat.