While in a video call, the preview viewport does not represent the final viewport

### Your use case

While in a video call, the preview window showing your camera does not represent what the other user is seeing on their screen.

A very clear way of seeing this is to change from portrait to landscape and back, and to notice the different viewports.

Consistency would be nice here.

### Have you considered any alternatives?

An alternative is to zoom out or for one person to tell the other person where to move their camera. Both of these can be problematic.

### Additional context

This can cause a problem, for example, when I am asking the other person to put an item in frame, but I cannot see it even though it is centered on their preview window.

### Are you willing to provide a PR?

No