A lot of the products I've seen built that attempt to be made of microservices are actually just a really inefficient monolith. A lot of different "services" that are all completely inter-dependent, or all use one database, or use libraries of the other "services", or use the exact same patterns/tools/templates/build systems/frameworks, or hard-code configuration values from other "services", or are actually stateful. My favorite thing is when one team can't deploy a change because they're waiting on another team to deploy a change.