Vmbr0 should be your VLAN aware bridge. You create this in the pve networking dashboard.
Then create vmbr0_101 (where 101 is your vlan). Also create vbmr0_102, and so on.
Assign those vmbr0_xxx to each of the VMs.
If you host all the VM’s on the same box, create all the vmbr0_xyz in the pve dash, and in each VM/container>networking assign it.
I typically run fedora kde, both server and desktop. I’ve a laptop using hyprland which is great once you remember all the shortcuts you’ve setup, but fedora kde is worth its weight.