I've always enjoyed this movie as a hypnotic experience where the camerawork, soundtrack, performances, and surreal story combine to pull you into itself completely for two hours.
That being said, I've never quite understood exactly what was going on through some of it, so I'm just gonna write down what I gathered from this latest viewing really just for my own benefit. I'm not focused on the closing shot so much - I think by definition it's an error to try to ascribe set meaning to an intentionally ambiguous ending - but rather on Riggan's suicide (attempt? gesture?) that led him there. This might be something that the audience is meant to clearly understand and I'm just dumb, but idk.…