Arch saves many previous packages in .cache and to clean them use pacman -Sc . Just properly test current running system before cleaning it.

Worked for me on Ubuntu. The instructions from amd is only tailored for one distribution. I think the easiest way to use it is trough docker. I don’t want proprietary drivers conflict for my gaming.

You can echo ‘mem’ > /sys/power/state as root to suspend. Or echo sleep into the file for hibernate.

Might fix it self with a pacman -Syu