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That's a slightly redundant criticism though - it doesn't present itself as anything other than a single purpose database designed for financial transactions.

That's like saying that rice noodles are no good for making risotto. At the core they are both rice...

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People seem to describe it at OLTP, and one of first DBs to come up in OLTP search is MySQL.

OLTP (Online Transaction Processing) is a database paradigm optimized for handling high volumes of short, fast transactions in real-time, typically supporting day-to-day operational activities like order processing, inventory updates, and customer account management where data integrity and quick response times are critical.

Another paradigm is OLAP, in which aggregation of large datasets is the principal concern.

Yes, I'm aware. It seems now there is a further bifurcation. OLTP is no longer general purpose, but now it's also for only one narrow use-case.

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