Verkada Embedded Software Engineer Intern interview questions

Haven't finished the interview process yet. Just finished the first round and there is 4 rounds in total as my recruiter said: behavioral, 60min coding x 2, then HM. In the process tho. Fingercrossed, but heard a lot of bad things about this company tho

had oa, recruiter chat, technical screen. I've interviewed at multiple big tech companies such as google, doordash, amazon, etc and have received multiple offers, and so I can say that this screen was with the worst interviewer I've ever had. I was 30 seconds late and when I joined he signs and says "finally". He asks me to introduce myself but does not introduce himself or shows any engagement at all. When we code he repeatedly tells me I am in correct direction but does not give me any reason why my code is wrong but doesn't let me move on. I try a solution which he says is wrong then I try something else but he says the correct way is the solution I tried previously. He then tells me I have a lot to learn. I did not finish one part so I asked if I could walk through what I would do and he laughs and says if I couldn't do the first part this is too hard. It was overall a negative and unprofessional experience. I have preformed badly on interviewers before but I have never felt disrespected like that.