1st interview with the future boss face to face. Takes 90min more but had to leave but it was great and enjoyable interview I ever had. 2nd interview with video remotely with the overseas manger. 3rd and 4th interviews also set the abroad manager by video interview. The only one I almost joined to another firm cuz after 3rd interview, no response at all. I don't hear anything from then. After a month later, they reached me out again and had a final interview then made an offer that day so all good.