Comment by therein

EAC has supported Linux for a while now as far as I remember. The problem is, it is up to the game developers to enable support in their config for that or not, and most of them are choosing not to especially for games where any weakness would be abused like Rust. Someone had posted a proof of concept where they ported the Linux EAC to Windows, which allowed them to bypass checks that would be performed on a Windows machine.