[Django]-Authentication and Authorization with Django GraphQL JWT and Graphene Relay

Basically you are doing everything correctly and your user should be fetched successfully.
I’ve just checked and it works in my case, I use JWT like a cookie but it doesn’t matter.

Had you authorized your user when tried to get tags?
Because regarding JWT you need to authorize your user and receive the JWT token. Only after that the real user will be presented in the request when you call the tags query. Otherwise the user will be anonymous.