This case, and poking around the anti-cheat forums on Steam, is why I have limited trust of Valve. (on a related note, also why I don’t want anti-cheat software on my PC. If I really wanted to play competitively and I needed it, it would go on a separate machine without anything “important” on it.).
Basically, " Quis custodiet ipsos custodes?"
…although, I hear he moved to Valorant, went pro, and is doing well.