It just uses the same linux kernel as everyone else. So I don't see what the point of your comment is.
Obviously Omarchy's kernel, Wayland, and the Hyprland compositor are not Rust and work just fine. If you've seen any of DDH's public speaking, he's willing to burn tokens to Rust all the things, don't tempt him! That was the joke, people.
I am pleasantly surprised to be daily driving Omarchy with minimal friction, by the way. For a relatively new Linux OS, this is no small feat.