> The moment developers find a way to get their anti-cheat working in Linux I have absolutely no reason to ever boot a Windows machine again...
The trouble is that kernel-level anti-cheat sounds like something useful but it doesn't actually get you anything because the cheat developers are going to analyze and modify the anti-cheat code the same as they do the game code. And then having it running in kernel mode on the non-cheater's PC doesn't buy you anything when the anti-cheat code you wrote isn't actually running unmodified on the cheater's PC.
The cheat developers do have to put in the effort to analyze what it's doing in order for that to work, but the same is true of user-mode anti-cheat. Being in kernel mode doesn't solve or improve anything, it just creates a hazard because then bugs or malware in the anti-cheat code can compromise the entire system and are effectively granting themselves access to things you didn't approve, e.g. a game running as the kid's user account can't normally access the parent's tax returns, but in kernel mode it can. So what you want is for them to stop doing that.
Meanwhile the Windows kernel and the Linux kernel are completely different, so you're not going to be able to take Windows kernel anti-cheat code and run it in the Linux kernel even if you're not attempting to cheat. You'd have to have them to make a Linux-specific one, but you don't want them to, because they shouldn't be doing it at all.
The trouble is that kernel-level anti-cheat sounds like something useful but it doesn't actually get you anything because the cheat developers are going to analyze and modify the anti-cheat code the same as they do the game code. And then having it running in kernel mode on the non-cheater's PC doesn't buy you anything when the anti-cheat code you wrote isn't actually running unmodified on the cheater's PC.
The cheat developers do have to put in the effort to analyze what it's doing in order for that to work, but the same is true of user-mode anti-cheat. Being in kernel mode doesn't solve or improve anything, it just creates a hazard because then bugs or malware in the anti-cheat code can compromise the entire system and are effectively granting themselves access to things you didn't approve, e.g. a game running as the kid's user account can't normally access the parent's tax returns, but in kernel mode it can. So what you want is for them to stop doing that.
Meanwhile the Windows kernel and the Linux kernel are completely different, so you're not going to be able to take Windows kernel anti-cheat code and run it in the Linux kernel even if you're not attempting to cheat. You'd have to have them to make a Linux-specific one, but you don't want them to, because they shouldn't be doing it at all.