U.S. Financial Technology Senior Backend Java Developer interview questions

Three rounds all technical with 30 minutes each via teams video. For the first interview, the person is super rude, barely audible and above all super rude. This particular interviewer did not turn on the video and it was me looking at myself while he was shooting from the dark. The questions were straight from the internet and some of them were like difference between DI and IOC in Spring and he parroted the same answer I gave while saying I was wrong. The other two interviewers were super uptight and have no sense of humor. I answered all the questions correctly and they ghosted me with no feedback. So if possible, avoid this company it will save your time and the feeling of being insulted.