The two reasons to run proxmox here are one, to create external snapshots and two, to allow multiple operating systems to share your workstation. I keep a virtual Windows install for random windows os stuff on the same server.
If you are not getting the benefits of virtualization, then it makes sense to run bare metal.
Op, I have half a pallet. I could ship you one... From the middle of USA. It's probably not worth the cost in shipping.
Aren't German government agencies moving away from Windows? The lack of forced waste might be driving prices up.