You may have read my post about big data not really being a thing:
https://radiki.dev/posts/a-small-dbms/#commodity-hardware-is-all-you-need
but you may have remained skeptical. In that case, here's someone else saying the exact same thing:
https://motherduck.com/blog/big-data-is-dead/
Marketing angle aside, the conclusions are the same. Big data is not real and even if it was, it's not useful.