I appreciate the trend to break the frontend monolith - I think its one of the next steps for grand scale web apps. However, that noted this is certainly not for everyone and it has some downsides (e.g., complexity) that need to be tackled.

Right now there is also some lack on tooling and framework / library side. Nevertheless, there are some approaches already.

A project currently in the making is Piral (https://piral.io). It is not production ready at this point, but I think it may hit some sweep spot depending on your requirements (see https://github.com/smapiot/piral/blob/master/docs/features.m... for features and comparison to other / similar frameworks for micro frontends).

Disclaimer: I'm one of the authors.