All of the backups are incremental by design, so only the files that were changed since the last backup run will be transferred to storage side during the next upload.

to add to this, the currently released version can only do full file backup. Block level backup is coming soon, most likely this month - we are finishing the development and starting the testing stage these days.

Does the current version have synthetic full backup?

in Linux and Mac? No, not yet. We have it on our roadmap but it's too early to set and ETA now

Thank you.