Each service can have different backup settings.
A full backup and restore service is better. Some backup tools just make copies of your hypervisor settings. VMWare is a leading virtualization system and if this is your hypervisor of choice, you will benefit from specialized VMWare backup tools.
One of the key services that you need to back up is your hypervisor. Back up everything to protect against accidental deletion, malicious interference, and ransomware attack.