Meta Product Manager interview questions

1) I was contacted by a FB recruiter. So they contacted me in the first place. 2) Phone screen with the recruiter. He gave many detailed information about which kind of questions could be asked at the interviews. I prepared a lot based on these information. Unluckily there was not coordination between the recruiter and the interviewers and one of the two interview had nothing to do with these information. 3) 2 remote interviews: Product design and Analytical interviews. The interviewers were more junior of the seniority of the role I was applying for. And this is already quite strange. - the first interview was a normal product design questions. You can find all kind of info and books about them. Design a a new feature for FB in X space (X=eCommerce, Dating, Ads, etc). - the second interview was a very generic analytical question (decide metrics for FB product X). Nothing unusual, but the experience was really bad: the interviewer was inexperienced, he didn't want to say anything else during the whole 55' of interview. No clarifications, no feedbacks. He was only making puzzled faces and asking again about the KPI I was proposing, as if she never heard of them, regardless of the reasoning behind. The recruiter was slow to answer. Once he took literally 1 month to answer. Honestly, how is it possible to take 1 month to answer an email? Even just a follow up to tell me you'll be slow to answer would have be great in comparison. I didn't pass, that it's not a big deal by itself, but I can't stop thinking that it was a huge waste of time: I didn't even have a proper feedback. Just generic words. When I asked for a real feedback from the interviewers so I could improve and learn, I had no answer. In general, really bad experience. I don't think I'll apply again.