The App Startup library provides a straightforward, performant way to initialize components at application startup. Both library developers and app developers can use App Startup to streamline startup sequences and explicitly set the order of initialization.
Instead of defining separate content providers for each component you need to initialize, App Startup allows you to define component initializers that share a single content provider. This can significantly improve app startup time.
Why I abandoned the Jetpack App Startup?
Android Startup Analysis [https://medium.com/swlh/android-startup-analysis-8ce7560f3672]