Problem with resolution and aspect ratio

Hi, I have a problem that I hope can help me solve.
I have widgets with a resolution of 1920x1080 FullHD. I do not know what resolution to start the game with.

If I start using the console with “full screen”, the screen expands but does not maintain the aspect ratio of the initial widget or others.

If I start the console with “r.SetRes 1920x1080f” I am forcing the game to appear on all computers that start with that resolution and I do not see it correct. How can I force an HD resolution?

Any ideas?

I am not sure, but, try to set the fullscreen mode using the Game User Settings, after that, call the Widget to Viewport.