Na documentação tem o polling e refetching. O que está sendo usado hoje é o refetching.
posso implementar o transport-ws
link Doc: https://github.com/apollographql/subscriptions-transport-ws
link video: https://www.youtube.com/watch?v=R-VLZ--sTzI
A small module that implements GraphQL subscriptions for Node.js https://github.com/apollographql/graphql-subscriptions
task 2 - Refresh automático (GraphQL, Apollo)