> By switching to fetch(), we can take advantage of its support for readable streams, which allow for a stream of content to be swapped into the DOM, rather than a single response.

Based on this section, it will be interesting to see how this evolves. I've used HTMX a bunch but after stumbling on Datastar I've come to prefer it. Partially because I don't need something like alpine.js to get some frontend goodies but also because I've come to appreciate the power of SSE streaming morphable targets to the browser