I mostly use win11 as my main os, and using proxmox as a base lets me properly use things like pihole, homeassistant, nextcloud, and other such services, because Windows really sucks for virtualizing those.
And OS hopping is a lot easier when I have a backend like proxmox.
Want to try arch but not sure if nvidia/wayland support is there yet? Roll up a gpu-p’d VM for it, instead of wiping the entire disk.