No, it should not be necessary to add the shortcut explicitly, and it works out of the box here. I wonder whether some other application interfering with/reacting to the ctrl++ instead of gnome-terminal could cause this, but I have no idea what that would be. (Especially since zoom out works without issues.)
Thanks for your response.
No, it should not be necessary to add the shortcut explicitly, and it works out of the box here. I wonder whether some other application interfering with/reacting to the ctrl++ instead of gnome-terminal could cause this, but I have no idea what that would be. (Especially since zoom out works without issues.)