What cross platform tool to use for the Resources Guru platform? React Native / Kotlin Native?

For future reference:

I am contemplating using React Native for future websites and cross platform development of The Resources Guru platform that currently is in open alpha development stage solely on Android:

https://play.google.com/store/apps/developer?id=Norakomi+App+Development

Facebook put out an interesting article a while ago on the why and how's of React Native

https://engineering.fb.com/android/react-native-bringing-modern-web-techniques-to-mobile/

But is React Native still a good choice theses days?:
https://dev.to/jessicabennett/react-native-still-a-profitable-choice-in-2019-5km

Additional blog from Discord on their React Native usage:
https://blog.discordapp.com/how-discord-achieves-native-ios-performance-with-react-native-390c84dcd502

As a Android Developer I also looked into Kotlin Native but that doesn't really seem to be production ready yet:

https://itnext.io/why-the-kotlin-native-memory-model-cannot-hold-ae1631d80cf6