Amazon Web Services Sr. Product Manager interview questions

They have a multi-interview STAR process. You speak with several different management roles from product and engineering. Each interview takes 45 minutes, it was a total of 8 interviews in one day. The most disappointing part was that they promised to give feedback in case they decide to not hire. And I got a decline with "sorry, but we cannot provide you more feedback". That's awful given that I spend a day of my life on their interviews, especially given that I was not actively looking for a new job, so it was their initiative to reach out to me.

Behavioural and technical questions, 45 minutes interviews for 4 rounds. loop interview was conducted which means all four rounds were on one day back to back - Amazons basic interview style. Based on Amazons leadership principles