TiDB is for large scale data. You generally wouldn't use it unless you have at least 1TB of data. 10TB is a single small customer database for them.

(POV when storing 1PB in Oracle) when I saw the 10 TB in another post, I was like "wait, isn't this sold to scale out, we have 100 times the data here".

Easily at scale

Size is not a good indicator for content quality