It’s really not. In full screen mode your screen is the same size and aspect ratio it would have otherwise been.
In regular desktop mode, you get extra space, bringing the aspect ratio from 16:10 to something much closer to 3:2.
The thing most people seem to be forgetting is that on PC laptops that have have razor thin bezels, no notch, and a webcam, the cam is either in a weird place or it’s a piece of low-res garbage (with a tiny sensor).
I really do not understand why people are so up in arms about this. It makes the screen bigger in one mode, the same size in the other, and the camera vastly better.