Totally anecdotal evidence, but I have two cats and I give them "wet" food once a day. If one of them is far from the food bowls I say his name and he immediately comes running. If none is near me, both come running as soon as I call the first name (from different parts of the house). So, non-scientific, but I always assumed they could recognise each other's name.
Everything is automated and runs on a schedule, but when I need some ad-hoc restore, say, of a single snapshot or folder I can always use KopiaUI.
Been quite happy with it.
[0] - actually two providers, for redundancy, plus local physical storage