From wikipedia:

In June 2020, NebulaGraph raised $8M in a series pre-A funding round led by Redpoint China Ventures and Matrix Partners China.[5][6]

The China connection runs deep. Check out this guy working vesoft (the company of NebulaGraph Database), some guy locates in China and used to be working in Huawei for 11 years

https://cn.linkedin.com/in/ming-zhou-a07017100

Things does not add up for NebulaGraph Database. I personally do not want my data accessible by China or CCP.