I just saw these comments related to pan-configurator.
Please be aware that I continued pan-configurator under a new name and repository:
It has all the same functionality from the past, but more features and improved handling.
I am also working on an PAN-OS-PHP API, PAN-OS-PHP GUI in additional to the still available PAN-OS-PHP CLI.
To bring in some information about to answer the problem from March 2021, where it was not possible to download Panorama configuration.
This problem is related to a PAN-OS problem and was fixed in May 2021 by Palo Alto Networks, but I also introduced a work around,
if I am not mistaken at this time also public in pan-configurator.
For any feature request, please feel free to open an Github issue.