A new "Camera" option in the screen recorder's options drawer lets you choose whether the floating camera bubble stays visible for the whole recording or fades out after 5, 10, or 15 seconds. Once it fades, the recording continues as screen only. The option is only available with the Floating bubble camera layout; it is disabled with an explanatory tooltip when Split screen is selected.
Fade out your camera partway through a screen recording
The screen recorder can now fade the floating camera bubble out after 5, 10, or 15 seconds, leaving the rest of the recording as screen only.