I have a hard time seeing how lifecycle identifiers could be called "arbitrary" except perhaps (again) from an "under the hood" viewpoint. From an API standpoint they are explicit and extremely simple.

I don't have anything against hooks except the API. There is no way for someone who isn't intimate with the ecosystem to understand the difference between these:

    useEffect(() => {
      document.title = foo;
    }, [foo]);



    useEffect(() => {
      document.title = foo;
    });


    useEffect(() => {
      document.title = foo;
    }, []);

Whereas anyone can understand `componentDidUpdate`, `componentDidMount`, `componentWillUnmount` just by reading them.