Honestly, I think it's an incredibly important step....
There's legit benefit to having arm proxmox hosts....
I did a quick test.... geekbench scores on a raspberry pi4 ran circles around the same tests running in an emulated arm64 qemu VM running on xeon hardware with gobs more IO/CPU/Mem...
I want to be able to have, for example, GitLab CI ARM64 runners for doing container builds .... emulating arm64 in docker to do multiarch builds is really painfully inefficient ...
havin the ability to register some ARM64 proxmox nodes as workload trucks could be really useful but getting to that point isn't gonna happen quickly... coz lots of moving parts .... but having the datacenter manager component able to run on a Pi, for example, would be (in my opinion) a fantastic way to start getting the core components of pxm working while sandboxing multiarch interop problems as a problem for future-self .....