I usually grab the packet name using a package manager application and then add the app as an Android Enterprise System app, for example. This way intune delivers the same camera app the phone already has.
Care to share an image of what your Name, Publisher, and Package Name looks like? Obviously, name can be anything, and Package Name is com.sec.android.app.camera, but what is the Publisher? Google? Anything else I would need to do to get the Android camera on the Work side?