Lengthy interview process with multiple rounds of interviews with different people. Initial phone interview, followed with multiple zoom interviews before a final interview. Did not hear back about why I was not selected as a candidate

Via Zoom. Interview went great. Then no communication for two weeks after. I was told HR was going to send me another assessment test. Never got it. Hiring manager said she was going to follow up. Never did. Finally, emailed corporate, they got back to me a week later stating they weren't moving me forward. What bugged me, is the lack of communication. I found it super unprofessional. For someone like me who is goal driven and devoted, don't waste your time. I should have heed the warnings of others.