Went though 6 rounds of interviews including recruiter screening, hiring manager, COO, technical product manager, technical product lead and CTO. Some interviewers are more immature than others, but recruiter was very helpful in between rounds. Going through this many rounds of interviews, it's clear they interviewed me for industry research since they asked pointed questions about current role at competitors was the clear theme at 3/5 interviews. 2 rounds were sincere and honest. Interview questions weren't hard, but sometimes we're clearly also irrelevant to the job description & role posted. In retrospect, the whole process is pretty scammy.