Perhaps very large companies don't care about the personality of a potential hire. Not my experience, but maybe. Small and medium sized companies absolutely will reject even talented engineers who are toxic or otherwise "not a culture fit". In fact, this "culture fit" jargon started in SV. It's weird that SV (?) is abandoning it.

I am familiar with tech interviews on both sides of the desk, and Darth avocado's 'splainer does not align with my experience either.