I had the opportunity to participate in an interview some years ago. The experience seems professional and organized. What was not professional was after giving a short presentation (a requirement prior to the interview) the HR ghosted me despite saying they will get back to me in a few days or so. Despite my follow-up email, I didn't even get a generic email saying I didn't get the job. I was disheartened to find a complete absence of communication, not even a standard acknowledgment of my efforts or notification regarding the outcome of the hiring decision.