Is there a difference between FHD and 4K (Xbox one X) in Call of Duty Black Ops 4?

Is there a difference between FHD and 4K (Xbox one X) in Call of Duty Black Ops 4?

Yes

The game supports Xbox One X Enhanced. In this case, it also means UHD resolution.

That is clear to me the question is whether you can tell the difference between Full HD and 4K

Of course you can see that, but you also need a correspondingly large UHD TV.

Since I also have a PS Pro, I can at least see and see the comparison between World of Tanks and World of Warship.

I myself have a 55 inch UHD / HDR Qled from Samsung and am sitting about one and a half meters away. With a smaller picture, it certainly has less effect.

Okay I have a 50 inch Uhd Tv from Samsung and Ne Xbox one X.