Meta Product Manager interview questions

My experience was different than I expected it to be. I initially applied to a different role through a referral, however the recruiter reached out to me for this specific role. The first step was scheduling a phone screen with the recruiter. This was 15 minutes and was a simple explanation of my experience and the recruiter gave me a general overview of the company and team. The recruiter also mentioned the salary on this call and it was a lot lower than I expected considering my current role pays more and I have 3 years of experience when the FB role only requires 1 year. The recruiter moved me to the next step of the process which would include a 30 minute video chat with the hiring manager. I asked for more details to prepare for this interview, but the recruiter simply said it would be behavioral with a general overview of my experience and how it related to this role. So to prep for the video chat I reviewed the FB role extensively and wrote down examples of my work experience that highlighted how I was a fit for the role. I also reviewed the FB team page and culture pages in depth to get a strong understanding of what they are looking for. Next step - video chat with hiring manager. While I had spent a few days preparing, I was completely caught off guard with the structure of this interview. To start, the hiring manager gave a 2 minute ramble on the team and position, and then dove right into an abstract question that I was not prepared for. I didn't even have a chance to discuss my background and strengths and interests, so I wondered if the interviewer even knew anything about me. Overall the experience felt very confusing, rushed and impersonal. I wish the recruiter would've informed me about the problem solving structure of the interview, it would've been easy if I knew what I was walking in to.