LinkedIn Senior Software Engineer interview questions

My phone screen went well. The engineer that interviewed me was really engaged and asked good questions. My recruiter was helpful and nice too. But, my virtual onsite experience was not good... My interviewers asked me a hard question, but they were not engaged at all, and they were not supportive. I explained to them the right solution (I checked it after the interview), but they didn't express any positive emotions. Zero collaboration. They kept silent a lot. I always felt like I was doing something wrong. At this moment, I'm interviewing with other companies like Google and Amazon. And they interview so much better than Linkedin! They are much more supportive, they ask questions, give hints, and they smile. By the way, Linkedin say that humor and collaboration are the part of their culture. Based on my experience, this is not true. The engineers were not properly trained to interview people.