We're pretty bought into Flutter. No cross platform toolkit is perfect but Flutter is miles ahead of everything else. For a not very scientific analysis: https://trends.google.com/trends/explore?date=today%205-y&q=...
It has significant tradeoffs and fits some projects better than others.
React Native has quite a few benefits over Flutter. Especially if building for the web, I’d actually say Flutter is only usable now if you don’t build your web app with it. Which in my cost benefit analysis makes it miles behind RN, but of course, that’s why it depends.