I cannot use it, on Linux Mint 20 Cinnamon. It doesn't find any photos and I cannot click on the list of devices/drives.
It said it found photos. It would not let me click the import buttons. So it basically does nothing for me. Uninstalled.
Does not work for me on LM19 although I installed it from LM Software Manager. Result: "Failed to load SPARQL backend: GDBus error:org.freedesktop.DBus.Error.ServiceUnknown: the name org.freedesktop.Tracker1 was not provided by any .service file".
No settings, too simple. Didn't even find the way to scan my hard drive for photos...