Yeah it might not be the best solution, I'm not sure yet if i keep it like this or not. But even if I would change the resolution during runtime (which is not even possible right now) then it wouldn't work either, they would just get mad because they can't play in their chosen resolution.
Then again, as Player said, it doesn't really matter too much because almost no one would use this feature.
I'm still working on updates currently, got the lobby running in fullscreen now, added "Game Capture" support for OBS to make recording/streaming easier with the OpenGL renderer that's used in the patch and fixed some more issues with the GOG version. Will release a version with support for the main server soon, still waiting for Mistral to fix his OBS and other features and lambchops is also working on support for his plugins with the widescreen patch.