The reviewer in the Washington Post says this:
Living in the closet will turn you into a kind of emotional hunchback, the film seems to argue.
In 2020, there is, sadly, nothing anachronistic about that truth. In the film’s final image, Mantello shows Michael running down a street after the rain, away from the camera — and, as it were, toward a future that holds both promise and, overlaid with the film’s pall of pessimism, the long shadow of persecution.
https://www.washingtonpost.com/goingoutguide/movies/the-boys-in-the-band-movie-review/2020/09/28/a452902e-0012-11eb-9ceb-061d646d9c67_story.html