It’s the OH3 pathes so obviously it was very recently updated.
Be aware though that it applies only to openHAB itself.
None of the OS, none of of the extra tools you install.
And you should be using openHABian builtin backup tools rather than to take care of this yourself.
Markus, thank you! I want to run it a) automatically once a week and b) a copy of the backup stored on my NAS (via NFS). Is this currently possible with the built-in tools?