Honestly don't understand how this software is so highly lauded, the three times i've used it to install on computers the first time it could not load the graphics drivers and installation failed, and on the second computer it fails to get dhcp address, the third computer just fails to work with dhcp with proxmox installed when literally ubuntu server and lubuntu worked fine.
In my opinion, Proxmox VE is the best virtualization platform for small and medium businesses, and of course for home-labbers.
We switched to Proxmox VE from VMware ESXi on all customer servers (about 30 now) at the 5.4-6.1 era and never looked back. Proxmox is superior in all ways compared to the free and cheapest ESXi licenses (wchich is not cheap at all with $5000 for a 3 node cluster...).
We ran multiple PVE clusters, too, with different storage options (TrueNAS NFS share, Ceph hyperconverged, ZFS replication to name a few we use), without problems, now for years. All backed up with PBS (some clients choose Proxmox mainly because this backup system).
We currently running multiple projects for new clients to switch their systems from Hyper-V or VMware to Proxmox because they see the robustness and easyness of it at our company and at our other clients.
There are glitches in the matrix sometimes, but the company and the community gives anwers for the problems in hours, maybe days at max.
For exapmle, this exact problem not showed up on an another server, the same day I wrote that post, the installation went flawlessly.