Backup of Servers etc from the Buzz 5 app is just text data really
So yes this is normal
E2 had 2 ways, Buzz app and then OS backup
OS backup can take 40 minutes if you have lots of Data
Android made so many changes on newer versions, that backups of OS basically aren't really possible anymore. Not ones we can create ourselves, as all data is encrypted
And the main developer who rooted, retired