FWIW, after my latest Duplicati dive and endeavor ( Duplicati backup Gmail setup ) and the multiple issues (warnings and errors) I resolved through investigating why they appeared and better understanding my eventual need, I just wanted to state how comprehensive the documentation is and how forum user input provides a much needed, but important, hue of clarity.
While I’ve been copying and imaging data for decades and leveraging Duplicati for several years (out of a surface level convenience), I really never took the time to appreciate how well this capability cleanly fits a missing ‘vision of need’ in this binary category of function. Personally, I can’t imagine the hours of frustration, effort and patients it took to provide this level of software. Love & Light! 