I'm looking best practices and/or recommendation as how best to move a VMs currently residing on a ESXi host to the same host after converting it to Proxmox. Is external Hard Drive export the only way or am I missing a trick?
That said, for above to work ESXi and PVE need to be running in parallel. If you are doing an in-place replacement, then proper backup/restore (Veeam) is preferred. Using external hard drive is an option as well.