Full disclosure: I'm a Flutter team member who has focused specifically on iOS development.

There are a number of us dedicated to this on the team internally at Google. It's definitely a priority. Each platform has its own challenges though, and there's a very wide variety of issues that can arise that are platform specific. The more feedback we can get about what people want to do that isn't working, the more we can address it :)

Doubt it. Google is interested in supporting iOS, from what I see, but they don’t own the OS and it’s really hard getting the details right.

Then they can stop claiming real cross platform solution. To be hones this is exactly the reason I am sceptical to use any of their projects. I never seen something like that from other companies who produce engineering tools like Flutter for example.