Problem with resolution and aspect ratio

Hello, I have a problem that I hope you can help me solve.
I have the 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 “fullscreen” the screen expands but does not maintain the 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.

Any ideas?