Does everyone get an interview
Basically. I’m told that there are some exceptions but, through either a face-to-face or virtual meeting, everyone gets an interview.
Doesn’t have much bearing on admission. Mostly for you to get to know someone who went there and chat about what it’s like. I still keep in touch with my interviewer from last year - he really fought for me, but that’s unusual and, once again, doesn’t have much bearing regardless