Moving on from Fn keys not working on plasma/Wayland, they work on X11 / Laptop Issues / Arch Linux Forums before filing a bug.
Some of the Fn key combinations arent working, libinput debug-events
shows the keystrokes and they all work correctly if running on X11. They just dont respond while on the Wayland session.
I’m running a Minisforum V3 SE, everything up to date.