A screen is rectangular. Period.
Rounded corners are just hidden content.
A screen bending over the edge is just distorting the picture. Even if it's just the glass bending a little at the edge. I prefer a picture that is not distorted.
I currently have a phone with a camera in a tiny notch. I'd rather not have that, but it's actually not as big a problem as the round corners.
Yes, if the software supports the small notch properly, it's not really a problem.