TigerBeetle is impressive, but it's a single purpose DB. Unless you fit within the account ledger model it's extremely restrictive.
That's like saying that rice noodles are no good for making risotto. At the core they are both rice...
Another paradigm is OLAP, in which aggregation of large datasets is the principal concern.
Yes, TigerBeetle specializes only for transaction processing (OLTP). It’s not a general-purpose (OLGP) DBMS.
That said, we have customers from energy to gaming, and of course fintech.