This is mobile don’t over engineer!!!

Well there are many design patterns MVVM, MVC, SOLID, CQRS, hexagonal architecture and many other folder and files segregation patterns.

If know how to use hammer all things will look as nail.

Visual Studio or Rider will handle few hundred projects in your solution, but more than 5 should ring a alarm bell.

Ideal engineering product descriptions, no not needed parts or something missing:

If you can have 100 % unit test coverage than good, but should you?