Not an Issue : Just a question about nodes about homelab

[khuedoan]

Yes, you can mix and match bare metal and VMs, but it might not be the optimal solution to achieve what you want because 3 nodes are already enough for HA.
If you add another layer of virtualization on top of them, you still need to patch the virtualization hosts and configure HA within Proxmox. In this case, it might be better to let Kubernetes handle the node drain during reboot.

I still use Proxmox, though for a different reason: its flexibility. Even with a single node, I can create a test cluster to experiment with HA features https://github.com/khuedoan/homecloud/tree/master/staging/homelab