RN has generally used in situations where the company/project is small and they don’t have much or any native talent and this kind of makes sense for awhile… or a manager makes a play for “efficiency”. All the big players who have tried it eventually went back to native for various reasons.

It's a niche thing people who don't know any better try to use and then get stuck, not wanting to re-write their codebase.

For the most part, every dev shop has separate iOS and Android devs.