Ah, perhaps that’s what I’m missing. I do have a Windows install for playing the odd games every now and then that don’t support Linux, but I don’t actually back anything up since all of my games are via Steam and utilize Steam’s cloud saves for syncing (and these games are usually multiplayer online-only games and wouldn’t need syncing anyways). I know that when I originally used macOS (back during “Mountain Lion” I believe?) Time Machine did utilize an external disk, but I would’ve thought these days it also leveraged iCloud Drive.
I did know about Windows’ File History mechanism, but I also made the assumption that Windows tech would integrate with OneDrive since they’re made by the same company… doing a quick search though seems to indicate that it “should” be possible, but actually getting it to do so definitely doesn’t have a simple toggle like you’d expect.
That’s what I get for speaking about features I’ve not used myself, whoops!
I did get one of those at one point! Definitely no longer have it anymore, but it was really cool that Canonical provided those for quite a while (from what I know).