I think it’s just a formality. most employee based GC don’t get this call

@Mm mm, we are on same boat, case transfer from TSC to NBC on April 20th, then on May 17th to Long Island NY FO with status " Case is Ready to Be Scheduled for An Interview" but not yet scheduled. when is your interview? prepare everything from what were submitted during your application filling. good luck

my interview is scheduled for June 1st

I talked to my employer about why so many people are being waived for interview and not me. He said nowadays 50% of EB category are being called for interview. Our bad luck we fall on long line. Eventually it's the same destiny. Regarding questions, I guess they will ask mostly about our job, role& responsibility, employer details and blah blah.... Hope I also get my interview date next week. prepare well. Good luck