I am a fan of St Vincent's music so that's why I watched it. I think this movie is trying to do too many things, while not being able to execute those themes well, and ends up collapsing under its own ambition. The movie explores stardom, making art with friends, the relationship between audience and performer, between the director and the actor, between the public and private self. These are all addressed in one form or another, but in the end, they did not feel very cohesive to me. I feel like at the end, the main takeaway became "everything is everything" and that's not a super satisfactory takeaway for me.
On the bright side, if I think about this movie purely as a stream of consciousness of Annie. All the scenes and elaborately cartoonish characters are just caricatures in her mind. I feel like at the end of the film, if I use this lens, I understand who Annie Clarke is as a person, her struggles, her mental conflicts, even if her experience as a human is far removed from that of the normal person.