Meta Engineering Manager interview questions

Standard process, a screen and then on two 45 minute interviews. The first was engineering architecture, and the second was behavioral. Overall, it was quite surreal. The technical interviewer was a junior manager that had a lot of trouble articulating the details and constraints of the problem. At one point I gave him the option: either you tell me the details of the problem you want me to architect and I'll do that, or we can spend the rest of the time working together to illuminate the problem. He of course chose neither. In the end, he said that he was interviewing not for ability, interest, or collaboration but for preparedness. If you were not able to rattle off a complex architecture verbatim, he was not interested in you as a candidate.