20.0. 6 Restore Nextcloud after failed Update

[e-raser]

Restore backups from updater and disable backups

Can you elaborate on this confusing statement? A backup is a backup. So are the $nextcloud-data-dir/updater-ocXXXXXXXXXX/backups. Of course those do not contain user data or the database - but all the rest, so core/server itself and all apps.