This post is more for information that for help. First, thank you for creating Paperwork. I have just started using it.
I have the Xerox Workcenter 6515, connected on my internal private network. I thought you might like to know that it works with Paperwork in Windows 11, and the bulk scan using the feeder also works. Duplex scan works with the Xerox software, but not with Paperwork.
I have also tried scanning in openSUSE linux, but without success. This is a SANE issue, not the fault of Paperwork.