There is no single unified Android codebase which is dominating the world. There is no single Android app store, there is no single Android ecosystem. What does exist is a vast array of different platforms and different ecosystem running this underlying kernel called Android.
Where I think the confusion in the Android is eating the world narrative exists is the line of thinking that Google = Android. That every bit of the Android is winning narrative is a narrative that benefits Google. This view represents a clear mis-understanding of Android and what it is and why it exists.
and my favorite line
There is only one company in the market right now that does not need platform assistance from a third party. That is Apple. Every other hardware company needs a third party to provide them with software to run on their hardware.