GraphQL support in Django is a dark beast. Graphene doesn't even support subscriptions out of the box, finding tutorials is difficult! For the DB we use it for the querying syntax is way better, but anything other than a basic query is black magic and crossed fingers.
I can see the promise of it, but getting there is so cumbersome. In our implementation it's supposed to provide a level playing field between devs working on a react app and devs working on internal sites that are django template powered. In a strict query sense, if you roll it with DRF auth and use an auth token in every query, it's very flexible for us.
But even things like partial mutations are fuzzy. The auth packages for it are immature, the integrations with channels is immature.
