MIUI Backup has lost launcher settings


Sep 18, 2021
Usually I create backups via SwiftBackup. But because I doubt that all ROM settings are backed up completely I also created a MIUI Backup on device.
Only creating the backup already dropped a lot of my settings like Nova launcher desktop icons, widgets, PWA apps, background settings.
I did not restore anything from backups but did only create the backup on device. How can that drop or delete any settings? How can I trust that no other application settings are deleted now?

The background settings is MIUI config only and not related to any 3rd.party.app.