I was easily able to transfer Duplicati to a new Windows, which has similar paths. I just copied %LOCALAPPDATA%\Duplicati\ to the similar place into the new system. Duplicati was just working as before, just had to change the color scheme. Great! My other backup software just threw me to the hard ground, having to reconfigure everything from scratch. Did absolutely not work in a similar fashion.
Once again I am thinking about complexity of backup software. In case I die, for instance. I am an IT guy and it is by far not easy to do a restore. Realistically, backups are worth nothing in such a case. Nobody would ever restore stuff. It’s the reason, why e.g. I put things like documents or the picture collection (starting from year 2000!) unencrypted onto an M-Disk, to the bank safe.