Nope, if you go out and buy a cheapish android phone from a carrier in the US today, it will have a ton of shit preinstalled that is carrier specific. Including sometimes messages, visual voicemail, etc.

Apple has basically had the balls to tell carriers to go fuck themselves and do it their way, and it's been a huge boon. Google still hasn't done this enough, IMO.

The context I was talking about how when RCS was designed, carriers still were mostly responsible for "apps" on the phones.