Is the vscode-graphql extension only meant to work in typescript projects? I’m not getting any code completion, etc. in a Next.js project. Just syntax highlighting.

The extension works in any project. Can you describe your problem here: https://github.com/prismagraphql/vscode-graphql? 🙂

This extension requires a valid .graphqlconfig.yml file in the project root.

Is that true? Or is

.graphqlconfig

also respected

That should also be respected.