After using the new ‘shutdown / reboot’ feature I discover that the external disk I added for backups does not remount automatically, so if I want to update my backup I have to restart the whole external-volume-mount/define-as-backup/select-backup process.
This is not critical at all indeed, but I think when you’ll implement automated backups it should be considered that a user having set this will not expect everything being cancelled just because it has moved its machine from one point to another, shutting it down in the process…