WTS : USB-UPDI Programmers for Attiny1616/AVR32DD20 drivers (Sofirn/Wurkkos/Fireflylite/Emisar)

Perfect, Wurkkos does it again (at least in terms of using the right MCU with the right flashing pads ;-)); on that note, how well does it powerbank functionality work? Any issues like the one I reported here?