I don't think microservices are loved by developers so much because they are technically superior but because they allow for quicker/safer decision-making on management level - just like "agile development" imho only helps trainee-devs but shines in providing clear communication strategies between management and developers (read: keeps mgmt off dev's back for at leat 6h a day).

Abstractly spoken, I don't care whether you call f(x) directly, via IPC, RPC or as a microservice. In my preferred programming languages there is not much of a difference anyway.