When is the MyController BP loaded in the TopDown template project?

I’m trying to understand when (and why) the MyController BP is loaded in the TopDown template project. It is listed in the Content Browser, but as far as I understood, those are just the assets you can use in your game, but are not actually part of the level yet. The stuff that makes up the level is listed on the right in the Scene Outliner. The only BP in the Scene Outliner is BP_Sky_Sphere. The Level BP is empty, as far as I can tell. So why is MyController loaded at all? Thanks!

The GameMode loads all the files like PlayerController, DefaultPawn etc.

So in the editor, go to the top, find theEdit menu, click on Project Settings.

and then find your stuff here

Oh, got it. Thanks!