You can boot ProxMox VMs via PXE:
https://blog.kail.io/pxe-booting-on-proxmox.html
But why bother? A read-only disk image would be simpler.
Pretty sure they want to boot the hypervisor itself via PXE, not the VMs.
Pretty sure they want to boot the hypervisor itself via PXE, not the VMs.