so the issue is with the appimage, and that link you sent most likely will never work with app images, that’s because there is not a set path by default that appimages are used in and people have them everywhere on their systems, ive seen people never move them from download folders lmao. for the apparmor profile to work the app image must be in the location that is specified in the profile, it will not work otherwise.
There is likely no work around for this at the moment as the profile doesn’t initiate any kind of scanning feature. so apparmor must be told where to look for the appimage. so its possibly a good idea to provide that profile i gave you, and use the instructions for a “readme” that they can access in your documentation. That way if it isn’t solved, users can simply follow how to do it themselves. its not a hard problem, but it is a problem that is present now. truly hope they can overcome these issues as app images are designed to be run first go.
in my opinion what would be easier is for each distribution to have in their options an app image runner. Stick the app image in that folder the OS will add the necessary things to make it work and the first launch the user can press yes i trust or no i don’t. and then it runs or not.