Yes, because everyone who uses React also uses React Native. 100% No one has separate repositories and no one keeps frameworks from crossing platforms in order to preserve some degree of software stability these days.

I hate it when people say, (and I'm paraphrasing) "well there's software for everyone's needs" but there really is. Everyone participates in different communities and ecosystems, and not everyone is riding the latest FluxTypeGoNativeAngular2 rollercoaster.

There are plenty of people who don't even use React because why bother?