ByteDance Developer interview questions

A recruiter reached out to me and recommended me to interview for one of the new grad roles. Failed the first interview, which is partly on me as I did not prepare much for the interview, considering that ByteDance was one of the first few companies I was interviewing for. However, the interview experience was bad. The first part was some theoretical questions and the second part was a medium LC question. The interviewer was Chinese and could not speak English properly. I had a lot of difficulties understanding what he was asking and saying most of the time. He felt impatient and rude when I could not answer some of the questions clearly. I actually managed to answer the algo question pretty quickly, but he did not ask me to run the code or even run through with him how the code works. I think it might be because I already failed the interview before the algo question as I did not answer well for quite a number of the theoretical questions in the first part. But, this goes to show how unprofessional the interviewer is. I had 20+ interviews with other companies after this, and I can say that all of the interviewers were much more professional than him. I hope that I am just unlucky to get such an interviewer and other interviewers at ByteDance are better. Otherwise, I would be very thankful to have failed the interview, as I definitely would not want to work with such colleagues. Lastly, small thing, but he did not on his video camera for the interview.