What you want it is the new feature of Next.js called App Router, which is not supported by Module federation. Here you can find how to fetch data on server-side directly in React components https://nextjs.org/docs/app/building-your-application/data-fetching/fetching

I recommend you to read this article if you already haven't. https://malcolmkee.com/blog/using-tailwindcss-with-module-federation/ It is not nextjs, but similar approach should work in your case.