Thoughts
The thing about React and even something like hotwire.js is that you run the risk of making your site *seem* slower, even if you've actually
improved time to first content paint. There's a certain advantage in using the browser's native loading mechanisms in that users think 'the browser is loading.' On the other hand, if you serve a static page from a CDN, the user very quickly gets to see your, branded, loading component, while dynamic content is loaded from the site. But this can mean that the user starts to associate your site with loading, regardless of the actual loading times.