Thank you for the kind words :D

I did not recognize it from macOS

Are you saying it's not from macOS - or at least was not part of the macOS you've actually seen? This thing is many years old, so it wouldn't be a very recent thing.

I don't use or see macOS, though, so my [historical] impression could be wrong (which is why I used subjective/uncertain terminology).

Or by 'suggesting' did you mean you were joking?