I really hope that you're not trying to redefine what the service of GP is just because you don't like the fact that they have tried to put the service on PlayStation.
Honestly, I expect better from you.
You're saying Microsoft approached Sony requesting to go fully third party and put all their IP on PlayStation? Forza, Halo etc?
You're the one trying to redefine what the service is. MS has used cloud streaming to bring GP to multiple devices, including the SteamDeck running SteamOS.
Here's an article about Microsoft bringing Gamepass to Samsung TVs via streaming
https://gamerant.com/2021-samsung-tv-support-xbox-game-pass-streaming/