Cannot launch external executable games from the Flatpak version
Copied from https://bugzilla.gnome.org/show_bug.cgi?id=773781
@laurent.pointecouteau: By design, Flatpak does not allow running commands outside of the sandbox. We need to support the appropriate portal for Games to launch native/Steam/LÖVE games
We probably should use Flatpak's HostCommand to avoid sandboxing.
You'd also need a way to list the applications outside the sandbox.
Edited by Adrien Plazas