Cleaning up files upon uninstall - Your uninstall script should already be cleaning up any files created or modified by your install process. However, we know that some older games may not fully remove files upon uninstall, and it isn’t possible to update the game any longer. Players need to know if any anti-cheat utilities have left files behind, especially those that modify OS kernel files.

This section alone shows how stupid kernel level anti-cheat is. Play a game and gain a persistent security risk. It’s actually a feature that such games don’t run on Linux.