Does that mean you don't believe it's going to replace Android/AOSP? It's in some Nest devices right now.
https://android-review.googlesource.com/q/fuchsia
What is more likely to happen is to replace Linux with the Fuchsia infrastructure.
Otherwise, why is Fuchsia already running the Chrome web browser? [0]
[0] https://9to5google.com/2022/03/04/full-google-chrome-browser...