I work at twitch. Let me put it this way. My team that I am on (VOD) has ~8 backend engineers and we are in charge of something like ~2 dozen services.

We literally have services that are run entirely using AWS Lambda functions only.

This is a pretty big difference from teams I've worked on in the past, that have 8 engineers all working on a singular service.

"Microservices" is more of a philosophy than anything.