Ah yeah, that's why I prefer RPGs on PC since I can compress and archive saves for a really rainy day, and manually rename the filenames of archived saves if I want to be super pedantic about it.
Xbox 360 used to be fine for this, as you could rename and organise individual saves from outside the game, as well as make copies and back them up on memory sticks.
On Xbox One though you can't access individual saves from outside the game, instead you access the collective save data for a game, so you can't rename it. I'm not sure you can copy it either, instead you can just move/delete it.
All your backing up is supposed to be handled by the cloud service.
The benefit of just signing in on your friends xbox and carrying on via the cloud is great, but it comes with an awkward compromise, particularly when the cloud service can fail.