I had 2 back to back phone screens and moved onto onsite. I would say FB recruiters are the least responsive recruiters I ever worked with. My onsite experience is mostly positive except for my execution interview. First of all, they made me video call without even telling me it was going to be a video call until the interview started. I was planning to utilize the whiteboard, and I couldn't write anything to the interviewer because the conference room didn't have a write function. Second of all, my interviewer was kinda pushy/aggressive/rude and would interrupt me before I can finish, and ask me questions that I already just mentioned prior. You can argue that I could have done better leading and connecting with this interviewer; my general sense was that he was just giving off this jerky vibe and didn't really give me a chance to fully form my thought. How did he ever pass interviewer training? Some of his questions was kinda condescending too? I suggest FB to better train their interviewers.