Hi,
I have noticed that making desktop apps for computers running in portrait mode sometimes create problems. The strange thing is that it is not consistent. What I have seen is that the graphics crashes, especially when running in fullscreen mode. Sometimes the app goes totally black and sometimes all the visual content is messed upp. I have found a workaround by making the app for horisontal mode and also setting the computer in horisontal mode but rotating all the graphics in the app 90 ccw. Im not sure if this is an Electron issue or something in GDevelop. Anyways, it is cumbersome to have to rotate all the contents 90 degrees while developing, especially if I create sprites on the scene with coordinates relative to each other.
Cheers
Farid