Ok, the Manjaro experience is nice, but it doesn't seem to work with hibernation on an encrypted disk. If you enable encryption and hibernation, it will hang at boot - you need to remove the splash screen to type the password once again - and then it won't resume anyway.
Back to Tumbleweed for now, switching to X11 as it seems it's something related to the amdgpu and Wayland (maybe a regression or some sort of misalignement).
If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.bsd.cafe/users/stefano/statuses/115724762211749661 on your instance and quote it. (Note that quoting is not supported in Mastodon.)