[jensneuse]

Short answer:

gRPC is widely understood as an API tool for Microservices. Microservices solve an organizational problem, not a technical one. Ironically, gRPC doesn't really help to solve the organizational problem.

However, GraphQL in combination with Federation, also known as GraphQL Federation actually DOES help organizations to scale APIs across teams and services.

So, even though the typical popular opinion suggests that gRPC is better for Microservices than GraphQL, the reality looks different.