You may be conflating microservices and horizontal scaling. You don't need to have multiple (disparate) microservices to scale. Microservices have absolutely no

You may be conflating microservices and horizontal scaling. You don't need to have multiple (disparate) microservices to scale. Microservices have absolutely nothing to do with scaling. That's a myth started by people who never understood the actual point of microservices, which was partitioning and continuity of developer productivity.