EA is hiring a Senior Anti-Cheat Engineer to lead development of a native ARM64 driver for their Javelin kernel anti-cheat system and start laying groundwork for Linux/Proton support

https://lemmy.ml/post/43977895

If you need kernel access because you don’t trust me not to cheat, I don’t really want to play your game.
Kernel access isn’t needed if they use signed boot and can verify everything running is what it should be.
Signed by who?
The chain of trust will depend on the hardware. I would expect on a Steam Deck it would be Valve all the way. If it was Ubuntu it would be Microsoft then Canonical. I doubt any random distro would be acceptable to the games wanting to enforce anti cheat.
You can secure boot most distros these days. It’s not new either. Depends on who it what their anchor is, and if it’s more limited than just secure boot being active.