In my experience, it's pretty easy to hit performance bottlenecks in React, so I don't think it's that uncommon to have to dive deeper for any reasonably comple

In my experience, it's pretty easy to hit performance bottlenecks in React, so I don't think it's that uncommon to have to dive deeper for any reasonably complex codebase. Also, you basically have to understand the React render cycle to effectively use `useEffect` for anything more complex than "do this thing on mount".