The Turing test in its original formulation has already been soundly defeated. People now hedge their bets and require that an AI must fool leading AI researchers to pass the test. But the original test supposed that the interrogator was "average" and fooling 99.99% of the world's population must be good enough. Either way, as LaMDA demonstrates, it is only a matter of time before even the strongest imaginable version of the Turing is also defeated.

Was a publicly run Turing test ever defeated? I could not find any record of such.

Yes, it was. Your weak google skills notwithstanding.

The bear in the movie Annihilation passed the Turing test, but it didn't seem to have much intelligence