The reason you don't see Svelte versions of common libraries as much as you do for React, is that with Svelte you can just use the vanilla js/html/css version and they work great. React has a hard time using vanilla approaches because the virtual dom and hooks aren't vanilla and don't work like vanilla. React is it's own world and therefore needs to have a React version of everything.
I think I do not completely grok that, maybe I have to experiment with Svelte a bit more. As GP mentioned, in Svelte one does not reach for third party components, so you might be on to something.
