drizzle-graphql - buildSchema doesn't support `ApolloFederationDriver`

Context
I'm building a NestJS microservice application with GraphQL using ApolloFederationDriver. Its main components is:

1) A GQL federation gateway: as super-graph (left-handed side in the code snippet image) and this will connect to distributed schema in other subgraph microservices
2) Subgraph microservices: this will hold actuall schema of GQL in each microservice (mid and right-handed side) the GQL schema will be generated from drizzle buildSchema function.

Currently, it seems to be not working with ApolloFederationDriver. Since when I try to access to the gateway playground, I can't see those scheme that generated from drizzle at all, just only my manual resolver appear there.

Please tell me if the buildSchema function can work with ApolloFederationDriver already.

Thank you 🙏
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