Here is my two-cent take on Game Pass or tbh any game subscription for that matter, and from the perspective of game developers. I’m not a developer but hopefully we will be able to hear the reaction of developers on this subject in one way or another.
Disclaimer: I can understand that Game Pass makes a great value for consumers and this is a given, nobody is arguing about that. The point here is what about the reaction of game developers? Personally, if I were a game developer, I'd feel that any subscription model kinda cheapens the game I work on. We can't deny that we all see the joy by developers when they're about to reveal their games, or when they track the number of preorders, or when they announce the number of copies sold in the early few days etc. Mentally it may have a big effect, developers may start working on DLCs or expansions, or maybe start working on new IPs as a reaction, but with this model, all of that excitement is basically gone. I’m a web designer and I understand the effect of physiological state on any creative work
You might work on a game for 5 or so years only to see it thrown into a jar of tens (or hundreds?) of games, and you will never know if the people played your game did it only b/c they already subscribed to the service, or just randomly came across your game to try it out, or subscribed specifically to play it or whatever other scenario, the idea is you will never know. You will just go ahead and start working on the next project. You simply turn into a machine for better or for worse.
This is my take on basically subscription services in games or other mediums and I'm very curious to see if anyone has a similar feeling, and again this is from the perspective of people who MAKE the games not you who PLAY it?