I thought it was normal until I went in a friends Rivian that had a better door. Service center replaced the entire door on mine and now it’s much more solid feeling.
Just watched this interview with RJ and they have a shot of a (refreshed?) RT1 with what looks like a manual hinged charging port door on the right side of the vehicle. Not sure if this is the first time its been shown. Looks like it would be for easier super charger parking in the refresh...