If you’re using the AIO image, backup/restore can handled for you, so no need to worry about the manual steps involved. Or if you’re using a VM, a backup can take the form of full system snapshots, so also no need to understand how data are stored. Granted it’s always helpful to know what your running, but not necessarily requisite, even for backups.

Or use both. That’s what I do, they serve suitably different needs for different situations, even if there is an overlap, and it’s not like they’re heavy tools