I've looked into this more, and it doesn't seem like it's something I can fix. Apologies! There are some parts of it locked behind the engine.
What you might be able to do is create a custom resolution. You could make it 1920x1079 for example. Just make sure the refresh rate is set to 60hz and it might work! Then simply select that resolution in-game or in the launcher. (You don't have to set your desktop resolution to it!)
Here's some guides that might help!