IQVIA Linguistic Validation Project Manager interview questions

Quite straightforward talk with HR (in English) about my experience, background, and salary expectations. Positive feedback during the interview. The interviewer said they would notify me after interviewing all applicants. I sent an email 2 days later to thank them for their time. No response or further contact whatsoever. Very unprofessional. Interviews take out of the time of applicants too, not only of the HR. And it doesn't speak well for the company if the HR cannot be bothered to at least send an automated email "The position is now filled". Someone should interview the HR if they are fit for this position.