This is with dosbox 4:3 (4k too)
OpenXcom 4k Letterboxed (and nonSquarePixelRatio: true - but this is not working)
And lastly from a crt real 4:3 on real hardware with dos.
There one can see how streched everthing is, ui, graphics etc.
Besides that, the globe was never round in the original on classic monitors.
Like NashGold has written, too. "In fact, characters now have proper proportions."
OpenXcom is an asolutly beautiful Projekt, one of my all time fav games.
I hope 4:3 like in dosbox can be added in the future. (or an option that makes it scalable? So that the widescreen graphics are not stretched if one wants it.)