Google Drive Addon What is the Difference Between Snapshots that say "Full" and Those that say "Core"?

I use the Home Assistant Google Drive Backup Addon. It creates two different types of backups: Some that say “Full Snapshot…” and some that say “core_2021.7.2” (which is not the date, as they are way after the date.) What is the difference? Are the second type created by something other than HA Google Drive Backup Addon? I’m guessing so, because they don’t fit the naming scheme in the docs.

The second one is creaded by Home Assistant when you update your version.