I don't think LLMs push us to use microservices as much as Borgers says they do. They don't avoid the problems microservices have always faced, and encapsulation is mostly independent from whether a boundary is a service-to-service boundary:

https://www.natemeyvis.com/agentic-coding-and-microservices/

service-to-service boundary is easiest to keep with the way we are using LLMs to code right now