At the director's credits, the moon is seen shining over Moon Knight's current location. This location varies with each episode.
The moon in the closing credits waxes with each episode.
The closing titles are a montage of people/locations/items from the show all covered in moonlight.
There is a statement in the closing credits: "For information on mental health resources near you, please visit the National Alliance on Mental Illness at NAMI.org".