For small android application using jetpack compose only... For multi entry points application, you may have several activities.

I read carefully MAD, and there is no enough information to conclude that unique activity is the recommanded architecture. In fact google is discrete about this, as there is many ways to develop an Android application.

But i also don't understand why there is a need to embed several activities... To me it sounds like a bad architecture which developer need to refactor step by step...