Sorry if I am a bit late I think with the epic games update they removed the native Linux support you have to use proton from now on. Also I had crashes when the game launched and I interacted with the desktop or something once you start the game just don't touch your pc for 15 seconds and from there on it should be stable. Last problem I had is the full screen once I tabbed out after 5 seconds the game crashes has to fix that with a mod that adds full screen border less to the game