i have a similar laptop,
i couldn’t manage to turn the keyboard light on,
but here is a discussion that might hekp you
and there are other threads on this forum about it.
i also saw that Kernel 5.11 and up might have better support for it out of the box.
also apparently there is an Aur package which i would personnaly not install and seem to work for some:
https://aur.archlinux.org/packages/tuf-controller/
not sure what the next one is about,but it seems more up to date:
https://aur.archlinux.org/packages/tuf-manager/
but there are no comments on those AUR packages.
@Guytoo
how do i check what is the status of this package and if it is in sleep mode?