AlexandarI've seen that many developers, when switching an application to be multimodular, create one module they call a monolith and put all the code in it.
Creating a monolithic module may seem like an easier solution when refactoring an Android app to a modular architecture, but it can lead to reduced scalability, maintainability, and performance. It's better to break down the app into smaller modules with clear responsibilities for better testability and flexibility.
Florent Guillemot