Hi,
It is multi-step process. For example:
- Restore backup of VM using restore disks option
- Download OS and any data disk(s) to on-prem
- Download json files from restore staging storage account. These have VM config details and can be useful starting point for re-creating the VM
https://learn.microsoft.com/en-us/azure/backup/backup-azure-arm-restore-vms#restore-options
Above is basic outline of steps. Depending on your specific needs the process could be more complex or modified. For example, if the VM was created using some sort of automation then step#3 may not be required because you would already have the bicep file and/or ARM template and/or other necessary artifacts (not including disks) for recreating VM and dependent resources.
-TP