Microservices solve a coordination problem the vast majority of companies will never experience. They necessarily add technical complexity in exchange for contracts over careful coordination and communication among business units that need to integrate. There is a reason they were developed and most successfully used by organizations with thousands of developers. It's not about scaling individual components or efficiency outside of enabling literally thousands of developers to work on common solutions without the communication channels exploding exponentially.
But don't forget OOP was an attempt in the 90s to bring micro-services to single user computers.
Microservices allow independent scaling; team size is irrelevant