Carrier interview questions

Easy interview mostly behavioral questions, but unprofessional. I followed up multiple times to get feedback (positive or negative), and I got ghosted. A candidate's time is valuable too. I am glad I didn't get the offer.

Applied online and received an invitation to interview with some HR person the next day. The interviewer was late to the meeting and asked questions which I had already mentioned. Lasted only 10 minutes and was told that they would pass along my information to the rest of the team and get back to me in 1-3 weeks. Got a reject 5 minutes later with no reasons mentioned. Unprofessional interview process.