I applied online. I received a phone call a week before the interview telling me I had made it to the final round of interviews (I didn't have a phone interview round). Citibank flew me to NY the morning of the interview. I had 3 one-on-one interviews about 30-45 minutes each. Standard questions about Citibank and what you are interested in, past experiences. Then flew back out that same afternoon.

1 case interview, 2 behavioral interviews. Each is about 30-40 minutes in length and all virtual. The case interview gives you 20 minutes of preparation. 5 minute breaks between each interview.