How is React not solving essential problems? Suspense solves a pretty essential issue. Also Svelte can quickly increase in bundle size and if you have enough components, it can become bigger than the equivalent in other frameworks: https://github.com/yyx990803/vue-svelte-size-analysis.
The first version of React was released on 2013, it took almost 10 years for Suspense to exist (we _just_ got it now with React 18), that's what I'm talking about. Even functional components and hooks took a lot of time from them get and implement the idea after they tried to use ES classes and made everything much harder to manage. Context also isn't perfect, I like it but the redraw performance is not amazing and doesn't scale at all to bigger applications.
This is an interesting comparison I haven't seen before, I wonder if it's true for a complete application using some lib for state management, routing, etc. and if this isn't just a kind of cherry picked example. Thanks for showing this though.