What?! PS Now has MORE subscribers than Game Pass?
The Verge disagrees with you. Do not compare Apple and oranges friend. Game Pass is a game subscription service. PS+ is NOT. PS Now is the game sub service and it is NOT as successful as Game pass. You might be right that PS + has more subs that XBL Gold but that is just a byproduct of having a larger installed base.
Amazon Prime is not a game service. It gives cheaper shipping and movie streaming. Why compare it to Game pass? Some hate MS so much that don't want to give them any credit in the game space. No matter how much some here dislike them
Game Pass is successful and its doing better than its competitors. That may change but the competition needs to improve their services first.