Thanks @throwaway_374 for your comment. Are you speaking from an hiring manager perspective or from the perspective of an interviewer? As an interviewer, personally I ask my friends to do mock interview before I go in for the real one. That helps removing blind spots specially if I ask multiple friends to interview me on the same job position and I ask them time box it to max 45 mins. Personally that gives me a simulator environment of sorts. However I may be a one off case as I may not be super confident about my interviewing skills.

I wanted to know if there are other people who are nervous about going to the interview without doing a test run in a pressurized environment. Could they use a service where they get connected to professionals from tech companies to do mock interviews for them.

Thanks again for your awesome feedback