Amazon Neptune supported both Gremlin and Cypher. AWS states in a blog post[0] that Cypher is the pathway to GQL. That aligns with the blog post. Personally I was hoping Gremlin would go farther, but it appears GQL is on track to be the unifying language for property graphs in a few years.

Guess it is time to learn Cypher as increasingly graph db vendors are adopting GQL. Is there an existing GraphDB that implements the GQL spec?

More open source projects should have fun text and drawings in them like the Tinkerpop[1].

[0] https://aws.amazon.com/blogs/database/gql-the-iso-standard-f...

[1] https://tinkerpop.apache.org/docs/current/reference/#preface