Back ups

The 15min is the ingame save, not to the backups to the left panel. For consoles generally I have seen them 30-60min, but random. Not sure how those work.

The 15m is pretty much the same as if you type save world ingame.

Not the automated ones. Those are setup as they are.

You can only update the 15m ones. What happens is say that is set to 15m, and server reboots and for some reason unable to load last update, it loads the 15m one.

The automated ones are like backups of the backup.

whenever I connect to my servers ingame, I always do save world 'in case'.

For consoles this does not exist. Only ones available are the backups.