Base on what I got from GCP doc the Auto backup is incremental: "Backups for Second Generation instances are incremental; they contain only data that has changed since the previous backup was taken"
But I don't see any docs related to the "on-demand" backup. Is that the full backup(I guess so)? But I don't see any formal doc about this.
Anyone have any ideas pls!
On-demand backup is incremental as well, and is noted in the page when you click "Create backup" in the BACKUPS tab.