Two 30 minute interviews by the professors involving my past research experiences, fit to the laboratory, and etc. It was conducted via Zoom meeting, back to back. I would advice to have a good idea of what you did in your research experience.

From what I can remember; It was a video recorded interview after apply for the Physics PhD program. They asked me 3 pre-recorded questions about my interests, why I chose the Physics PhD program, what do I do in my free time etc

Cornell sets you up with travel and a hotel room. You attend several general talks about the program given by professors and current grad students. Then, you typically meet with one or more professors.