I have 2 commercial apps that both run as AppImages. I'm on Ubuntu 24.04 LTS.
App #1 installs itself with Desktop Integration enabled (there's no way to turn it off).
App #2 runs without Desktop Integration but you can enable it via a setting in the app.
Both apps run perfectly. However, if I enable Desktop Integration on App #2, App #1 then reverts to having Desktop Integration turned off. The icon disappears from the application menu and the icon in the panel switches to the generic white box/gear AppImage icon.
Why is this happening? Is only one AppImage app allowed to be integrated into the desktop environment?