The endpoints related to watch providers only work using the Access Token Auth, in the docs is stated that Neither one of them provides any more or less access so which one you choose is completely up to you so I would expect the endpoints to work by using the API Key Auth but it's not the case. is this the expected behaviour?

Endpoints affected:

• https://api.themoviedb.org/3/watch/providers/regions
• https://api.themoviedb.org/3/watch/providers/movie
• https://api.themoviedb.org/3/watch/providers/tv