Yeah… Apex Legends dropped Linux support a while ago and that’s one of the reasons they cited; and tbf, there were publicly available Linux cheats that ran under proton.
But there’s also loads of publicly available “external” cheats that run the way you described. Some run through a virtual machine even. It’s just not a robust solution for preventing cheating, and mostly hurts the legit Linux players.
You don’t see that everyday on PC! I don’t really mind it personally… at very least, the game’s got bigger issues on the horizon imo. Life service and EA~