Here is the solution that works flawlessly, I never had a problem with the Zwave anymore as that also helped solving a problem with the range (have server room in basement)
Getting back to the proxmox, thank you for the guide. I still have one more question. Is Proxmox VM in a cluster working in a way that it hard assigned to the one of the node machines. And when it fails it needs to be recovered or migrated from backup to another node?
or it can be “distributed” among more then a single node for HA fail protection so when the node dies it will have no downtime, just maybe reduced performance.