Also anecdotal, but this is identical to my experience with a handful of ex-employees of some Elon companies. They were basically office politics machines, optimized to promote themselves at the expense of everyone else.
One claimed to have worked closely with Elon, but after seeing him lie about so many other things I don’t trust anything he told us.
They were weirdly, unnecessarily ruthless in everything they did behind your back. But they were also highly polished and charismatic when addressing you directly.
Obviously this isn’t unique, but it was weird to see how consistent it was from this group of people.