Aborting drag'n'drop with escape key
Don't know if it's some sort of standard, that you could press the escape key to cancel a drag'n'drop-process (before releasing the mouse button). Anyway, this doesn't work when dragging new documents over the Paperwork 2.0.2 window. Although pressing Escape does stop the dragging-process, the dragged document gets inserted into the currently selected document in Paperwork. This is a bit annoying when you want to insert new documents but realize, that there's one selected already. That would append the pages of the new document to the selected document instead of insert it as a new document.
Using Paperwork 2.0.2 in Fedora 34, Gnome 40, Flatpak.