It was an online video-call interview. It was a conventional interview where it started with a self-introduction and then followed with some interview questions. It went smoothly but seems like the HR didn't know what kind of person they should look for. Not sure the HR was just trying to pose some challenges or just not open-minded enough.
2 rounds of interviews with HR and the Manager. I went through the second round at the office. No negative feedback after the interview, but they ghosted me. Most employees are Chinese