HARMAN interview questions

I got interviewed last week for Java Developer role. Although interview was good and smooth except for the fact the interviewer was 40 mins late but thats completely understandable due to WFH situations, I didn't received any formal response from HR. I suggest the HR or Hiring Managers to atleast have some audacity to respond to the candidates on the interview result and should not keep the candidate hanging. Whether the result is good or bad, please do respond. Thus, the interview experience was very bad for me. The level of interview was medium.