Thanks! That worked right away :) I have also entered the correct environment variable in Flatseal now, and it opens as expected now from the desktop shortcut.
Just to explain why they’re stored there: you’re trying to change the config of the sandbox itself not the app. Flatpak manages the sandbox and it is flatpak that needs to know what permission an app should have. Any files in “~/.var/app/…” pertain to the app itself inside it’s sandbox.
Thanks for this explanation! I love Linux after having used it for two years now, but the sheer amount of things to know about is quite overwhelming when I don’t always have too much time to spend on learning. It doesn’t always feel like I’m getting any better (although I know that is not true), but comments such as yours is certainly helping people like me become better users :)
Tech Broligarchy*