No it’s not what’s being talked about. I’m not sure where you’re getting this. There aren’t a lot of details about CarPlay 2, but even this article says that CarPlay 2 is a way for the car and the phone to communicate more and allow the phone to control more of the car. What you’re thinking about is Android Automotive where there is an Android box in the car that is THE infotainment system. I have yet to see anywhere that Apple is building an iOS box that sits in the car itself that is the only infotainment system.

The proposal is not replacing the infotainment with carplay. It's adding a second infotainment system

Yeah, I believe so! But the post talks about using your iPhone to do things like turn on climate control remotely. I'm incredibly dubious of the idea that Apple would build an Android app with the full feature set that they'd ship for iPhones. And I'm never going to accept a $$$$$ purchase locking me into any particular ecosystem.