[phpisthebest]

Proxmox fall down on Enterprise tooling and integration with other software enterprises use to run the business

Things like Monitoring Platforms, Backup Solutions (veeam), Automation tool kits (powershell), etc.

I like Proxmox, I use it personally, but in its current form I do not see how any medium or large enterprise that has is management tooling around VMWare could just drop in proxmox.