As far as I'm aware OrientDB don't call themselves "graph-relational". In fact, they're positioning themselves as a multi-model NoSQL database. Where's EdgeDB positions itself as a relational database and a successor of SQL.
Dgraph.io?
How you guys compare yourself to dgraph database?
IIRC Dgraph is schemaless. EdgeDB is schema-first, which gives you type-safety and that amazing TypeScript query builder autocomplete experience :)
Does this autocomplete experience translate into IDEs when using client libraries, such as the Python library?