Kernel anti-cheat systems are currently the bane of Linux/Steam Deck gaming, haven’t actually proven to be effective at stopping cheaters (see Valorant for an example), and lead to various security concerns from giving 3rd parties full access to your machine to being used to install ransomware and malware.
Windows tried to restrict kernel access years ago, but backed down under pressure from various companies. However Crowdstrike’s outages have shown the sever consequences of leaving kernel access open, and we might finally see kernel access to be cut off.
Even if we play make believe that they make any difference at all (they don’t), it would still be unforgivable to install malware on someone’s computer to prevent cheating in a computer game.
They do make a difference. I’ve been party to the difference that bringing these tools to a platform does.