Just a public PSA and was a little sad. I thought the latest kernel updates would address this. Until then, when you plug the official Xbox Wireless USB in- nothing happens.
The 360 Wireless USB adapter still works tho for some reason. 10+ years and its still kicking.
Nix on another distro doesn’t allow changing the kernel. If you installed NixOS itself, adding xone to the system would be a single line.