It really depends on what kind of state you're storing. For UI or other client stuff usually a context provider is enough. For server data/state I started using React Query a lot more. It syncs server data across components that use the same cache key, which is really powerful.

Just curious - have you applied this in big React applications?

The reason I'm asking is because all context consumers get re-rendered immediately upon context value update. It might be ok for small apps but bigger apps can suffer.