Yes, as long as the shadowcopy didnt change (on windows) or anything.
In my experience the Backup fails if the client isnt connected for 2 or 3 Days and then tries to resume. (because of a changed ShadowCopy)
But for an offline time like “having a meeting” or “putting the notebook in standby overnight” it works like a charm.
i dont know about Linux and the ShadowCopy Thing could be a Settings thing on the Clients.
Just my 2 Cents