I work at a company that uses a hybrid monolith/service approach to serve millions and millions and millions of users. Unless you work for one of the top-top-top social networks we probably serve many more users that your systems do.

And even our existing services are not "micro": they are relatively large, and were mostly extracted to handle tasks that needed a different language.

This massive code base is a very good example of how most people can do just fine with a monolith. I even learned to appreciate this uniform approach to things: monorepo, unified ci/cd process, shared responsibility.