In Android 11 Beta 3, Google is blocking the ability for third-party camera apps to handle photo/video requests on behalf of other apps. Interested developers can read the release notes for the rationale behind this change.
However, there is one odd sentence in that explanation:
A user can set a third party camera app as the default camera app.
Here is the "Default apps" screen in Settings:
I don't see "Camera" on there. And if I search for "default" in Settings, I do not see an option for setting the default camera app.
So... how do we set the default camera app in Android 11?