So is there really no RaspberryPi support??
Not really correct. Proxmox itself is providing a client for x86-64 only, but there are some working and well maintained packages for aarch64, namely ArchLinux/aarch64 or self bakedNo, only x86-64/AMD64:
http://download.proxmox.com/debian/pbs-client/dists/bookworm/main
Not really correct. Proxmox itself is providing a client for x86-64 only, but there are some working and well maintained packages for aarch64, namely ArchLinux/aarch64 or self baked
Since this here is the official Proxmox community forum and the OP uses respectively tries to use the official PBS client repository, my answer, of course, refers to the official support...
I'm not saying you were wrong with post #11, but I can't see any plan or source that the OP is using/tries to use the official PBS client repository - yet.
Screenshot in the first/initial post: