You can do all of these things in a narrativist game too.I just think I detected/thought of a reason people might be chaffing so hard against each other in this thread and it has a lot to do with what they want as a player.
When I am a player, what I want is to explore. I want to overcome obstacles, I want to learn secrets, discover hidden places, etc. So, because of that, it is absolutely at odds with my purpose to do much authoring of the game world. Then, I'm not exploring - I am creating.
It was really fun to discover the creepy and eldritch horror at the bottom of the moat house in RttToEE because I didn't know what was down there. It would not have been fun if I just got to decide what was at the bottom. I want the world to exist independently of myself. I do not think this reduces my agency one whit, because I express my agency in the form of exploration, not in the form of creation.
Expecting your Noble background feature to (almost) always work does not mean you are authoring the details of that meet or deciding the intentions of the person you meet. That can still all be within the purview of the GM. You don't have to abandon exploration in order to increase agency.