Intertek interview questions

I had a screening call with a recruiter, and then there was an interview with the hiring manager. The hiring manager was knowledgeable and friendly. 3 weeks after the interview got a call from the recruiter with an offer shortly.

Don't waste your time. Applied on LinkedIn and 1 week later got a call from HR. Then got an interview with 3 people. The people that interviewed me were the rudest people that I have ever had the displeasure of meeting. They were super rude and condescending and asked super hard technical questions. They made me do a whole risk analysis presentation before the interview and I did a ton of research and then they did not even give me a chance to do the presentation. Then they were super rude when I asked questions about the company. They treated me like I was stupid. Then they ended the interview after 20 minutes. They were super unprofessional. I do not think I will get an offer at all but on the one millionth chance that I did, I wouldn't take it because I do not want to work with a dumpster fire of people.