To add to the above I would appreciate if Linux users would test the above AppImages. Distributing binary images on Linux is always tricky. This will not work everywhere, but it would be great if it runs on the most popular current Linux distributions.
The AppImage itself gets build on Ubuntu 20.04 and I know it works on Ubuntu 23.04. So if you are running Linux please test this and let me know whether the Picard AppImage runs on your system or not. And if not how it crashes.