Autodesk Principal Software Engineer interview questions

I have given interviews for couple of positions, at first attempt it went till second round and in second attempt was not able to clear the first round. Both the times, I have asked the HR for the detailed feedback because I was confident and can sense from the panel's that he was also satisfied. But HR did not share the detailed feedback and said it breaks the confidentiality clause. Does sharing the interview feedback with the interviewee breaks the confidentiality clause? They are just wasting the time of interviewee because might be there employees have time for this. Also, in first attemt, I got the round wise topics from HR which was not followed at all, not sure why they share such things if they themselves are not going to follow that. Bad experience for me in both times.

had a tech discussion, felt that the interviewer needs to have a bigger perspective. if candidate can't recall one technical term in whole interview, that can't be enough reason for rejection.