Yes - such "Schrödinger Facts" are to be expected.
https://sentientsyllabus.substack.com/p/chatgpts-achilles-heel
But you can use tools like phind.com which intersects its answers with actual publications. That seems to work quite well on your query. Better than a standard literature database search? I don't know.
@boris_steipe Thanks for the links, I'll give them a look later today.