[question] Clarification of run statement in documentation for cross building to Android

At the very end of the https://github.com/conan-io/docs/blob/develop2/examples/cross_build/android/ndk.rst example there is the statement:

> Unless you have access to a root Android device, running the test application or using the built library is not possible directly so it is more common to build an Android application that uses the hello library.

This is a pretty long sentence and I don't understand what is trying to be stated. Is it saying that this example is for a library only (Library module)? Can a similar approach be used to build an app (App module)? Or can an android app only be built from android studio as described at https://github.com/conan-io/docs/blob/develop2/examples/cross_build/android/android_studio.rst?