If you want a production-grade graph DBMS, you don't have that many OSS options that are reliable and well-supported.
In the relational space, it took OSS options like Postgres many decades (and somehow paid-for person-years) to get to a place where enterprises seriously consider migrating off Oracle to it.
In the relational space, it took OSS options like Postgres many decades (and somehow paid-for person-years) to get to a place where enterprises seriously consider migrating off Oracle to it.