What is the most powerful web framework? Is it React or Angular? Is it Vue? What else did we have over the course of the time? We had Backbone, Knockout and many more that I am not aware of. Technology and the frameworks we use on a constant change, but we will always have our Web APIs.
In order to understand real challenges behind the curtains, we need to understand what web really is. What kind of limitations we have and what kind of trade-offs we had since the web was a thing. Only after truly understanding what web is, we will be able to shape it according to our needs.