In Zoomr the camera is recorded as its own track, so after recording you can move and resize the bubble, hide it for sections, or switch to side-by-side or full camera. The self-view window can also float on top using Chrome's Document Picture-in-Picture.
Glossary
What is picture-in-picture (camera bubble)?
Picture-in-picture shows a small video over the main one, typically your webcam in a corner of a screen recording.