Center Stage is a feature available on the M1 iPad Pros:
11-inch iPad Pro (3rd generation)
12.9 inch iPad Pro (5th generation)
iPad Mini 6
This feature uses the front-facing camera (Ultra Wide lens) to automatically keep the person (or people) on camera in frame. As the person moves around, the camera pans to follow them.
You can take advantage of the feature while using Switcher Studio by enabling Center Stage as follows:
While using video in the Switcher Studio app, open the Control Center by swiping down from the top-right edge of your screen.
Tap the Video Effects button .
Tap the Center Stage button to turn it on or off.
After that, when you are using the front-facing camera as a source in Switcher Studio, Center Stage will be active.