You could copy your Duplicati-server.sqlite if you like. It’s usually next to all the job databases. Whether or not it’s encrypted depends on what 2.0.9.x you’re on and what encryption you set.
I’m not sure the encryption plan is totally settled. In an earlier 2.0.9.x it was machine-locked…
As with Export, if you don’t encrypt, then store somewhere secure to avoid theft of credentials. Similarly, if you do encrypt, don’t lose your passphrase…
Third-party tool duplicati-client has an Export backups with this feature, but it’s not yet 2.0.9.x compatible, and A note on maintenance status has some remarks about the priority obstacles.