Comment by matheusmoreira

This wasn't a problem with the game itself. It's their anti-cheat malware that stopped working. On Windows these things are implemented as kernel modules designed to own our computers and take away our control so we can't cheat at video games.

It's always great when stuff like that breaks on Linux. I'm of the opinion it should be impossible for them to even implement this stuff on Linux but broken and ineffective is good too.