TikTok Project Manager interview questions

The interview process here is somewhat typical of tech. ((5) Rounds: Hiring manager plus cross functional team members.) The recruiter does not mention the subject matter of the interview. In some cases the recruiter may brief the candidate, in my experience this brief has been inaccurate. Sometimes the interview questions are role specific and sometimes they are generic PM questions. The only thing that surprised me was the rudeness and bias shown by the interviewer. I've had positive experiences with people from China and the US; however it seems there is another demographic consistently trying eliminate US candidates. This has been my experience.