GoogleFuchsia is a new operating system that is being worked on by the company for the past two years. There are a lot of people who are curious about it, especially since there aren’t a lot of details that are available right now about it. One of the problems that it will encounter is getting to run the different apps that people are used to with their usual Android software with Fuchsia.
There is always a possibility that it will not work according to what you have expected. Another potential issue is that people are already used to their Android operating systems, and not everyone will be excited about the change. In fact, there are some people who may not even embrace the change, so you do not exactly know if it is going to be a success or not.
Firstly, it's not by any means certain that it will launch. Google are saying Fuschia is an experimental operating system. However, everyone is expecting a launch and there's some surprise that it hasn't already happened. If it does launch, it will have to prove that ordinary consumers really can manage it easily on whatever device they are holding.
the only person who has publicly done any kind of evaluation of Fuschia is Ron Amadeo of Ars Technica. If you can find an article that quotes him, he managed to get the early Fuchsia code up and running on an ordinary console.