It would be very efficient to have master components for all scenes that keep the scene information similar to global variables for all scenes.
A lot of times, we have to use variables for all scenes to transfer data from one scene to another, and that does not seem to be efficient. also, for larger and more advanced protopie files, it is not possible to include everything in one scene
Use cases,
Navigation bar, header bar, Media player, which contains all the media time play and info, etc