Meta Sr Manager Software Engineering interview questions

Headhunter reached out, scheduled an interview -- had an interview with "another manager of three teams." Very courteous. Very unprofessional. Only question was how do you do your 1:1's? -- Bouncing all over my resume, picking random companies. The only technical question, was mine... this makes me very worried. Does facebook not consider any (technical) value on people who have done scaling? If you want to be successful in interview -- BE YOUNG (<30 yrs), and technologically IGNORANT -- that's the demographic they are looking for.

Engineering Leadership recruiter reached out to me, did a phone screen with him first. Then he connected me up with the hiring manager and we did a video conference interview. After that, I was brought onsite for 1:1 interviews with 6 other people. Each interviewer had a specific topic to interview me about (Systems Design & Methodology, Coding, People Management, Leadership experience, Product Design & Architecture, and Project Retrospective).