From both a technical perspective and if the maintainers of these anti-cheat will consider porting or re-writing kernel level anti-cheat to work on linux, is it possible? Do you think that the maintainers of kernel level anti-cheat will be adamant in not doing it, or that the kernel even supports it or will support it. I think that if it ever happens, there will be a influx of people moving to linux, or abandoning their duelboots, and that alot of people will hate that such a thing is available on linux.
AFAIK the current anticheat systems on Linux only run in userspace not at kernel level. This does mean Linux is theoretically easier to bypass compared to windows, some games just dont seem to want to take that risk. For as you said 3% of the market.
I personally disagree with that stance though, because all it takes is a hardware device and all software anticheats are useless no matter the os (think a raspberry pi, and capture card). So anticheat is really a losing battle anyways.
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.