[jadengore]

Honestly depends on your use case.

Do you absolutely need a native-feeling mobile app? React Native (and ultimately React) are worth your time and investment.

In Gitlab's case, Vue.js works well for them because their product is web-first and allows them to iterate quickly.

For the most part, I consider React Native separate from React entirely. I consider most startups to either be completely web or completely mobile, and to let questions in the former case be answered by validating and iterating on the product quickly with a web app.