It could have been better.
It's a mature film that delves into the psyche, the mind, and the unconscious, and deals with deep subjects such as mental health, depression, anxiety, fear, guilt, and is a therapy for trauma and mental breakdown. The central arc is Yelena, and it's a sort of sequel to Black Window, but the movie could have been called Sentry or The Void because it also deals with him. It's emotional, has good action scenes, and a villain who couldn't be defeated by even the most powerful superhero. But it didn't touch me; I felt it was superficial and lacked depth. It needed more development of the subjects, more action scenes, and more scenes with the villain. It does leave a message of brotherhood and empathy, but it lacked development, not simply because of "the power of friendship."