The buttplug story is so, so ridiculous. Niemann DID cheat, has admitted to some of it, and very strong evidence of much more.
But the whole vibrator thing started as literally a joke twitch comment on GM Eric Hansens stream, where someone jokingly said something like "maybe he used a vibrator buttplug" and Hansen jokingly went "Haha, sure, that would work".
And thats it, thats the basis of the whole story.
It was then picked up by some trash media as "speculation" that he had cheated that way, Elon Musk then got involved an cracked a joke on twitter about it, and now the poor guy has to deny it publicly....