Android Automotive has a strong momentum. Rivian, you mentioned it, is Android Automotive under the hood. You‘ll find Android in the most EVs nowadays. BMW switched to it. VW will switch to Rivian, Porsche did switch to Android Automotive with the Macan, Polestar, Ford, GM - just to name a few.
And AA has a higher integration into the car, it has access to more telemetry data, is able to control the HUD and much more.
Times are changing. Android is on its way to become the dominant infotainment system. CarPlay is only valueable for cars with old infotainment systems.