All types of Backups are accessible from the Backups tab in the Store dashboard.
Daily Backup is scheduled automatically by the system. It's created daily after 01:00, UTC time. Daily backups are kept for 7 days. Weekly backups, created on Sunday after 01:00, are kept for 5 weeks.
Staging Backup is a backup of staging store before the Publish to Live. If you click Revert Staging, you use this backup to go back to editing the staging. This is available for 24 hours after Publish to Live.
Live Backup is a backup of live store before the Publish to Live. If you click Revert Staging, this is the version the system uses to put the store back online. This is available for 24 hours after Publish to Live.
Manual Backup is created by clicking the button Create Backup in the Backups tab. These are kept for 7 days.
You can create a Staging Store from any backup.