Meta Manager interview questions

A couple rounds of interview staring from a call from recruiter then online tests, phone interviews with hm. Review of past projects, experience, skills etc. Another round of technical interview with team.

Recruiter reached out for a 30 min screening and then set up a video call with the hiring manager (HM). The HM consistently asked about my areas of weakness, instead of what I could do in the job. I found it odd and disrespectful. Not sure if this is representative of Facebook culture, but the HM is not definitely not someone that I work for. No response after the interview.