Azure Backup now lets you back up Azure virtual machines that use disks with private endpoints enabled. This support is available for virtual machines using standard backup policies as well as enhanced backup policies, and can be configured using standard Azure Backup experiences. Additionally, while initiating restores, you can now also specify the network access settings for restored disks- you can choose if you want the restored disks to use the same network configuration as the source disks, allow access from specific networks only, or allow public access from all networks.
For more details, refer to the documentation.