Agree you need all of these things and more... but if you could do this above the microservice level, as a piece of K8S or whatever the MSA, then you might have

Agree you need all of these things and more... but if you could do this above the microservice level, as a piece of K8S or whatever the MSA, then you might have an advance over RDBMS. The result would be the same features/guaranteed you have with current DBMS, but you get independent deployability, elastic scalability, redundant availability, and other advantages of microservices that are missing with traditional DBMS.