Don't give long responses trying to impress them, keep it brief but sufficient. They tell you not to in the beginning but there's always one or two people in each breakout group who do it and it's cringey, the interviewers get obviously annoyed and have to repeat "give short responses" multiple times throughout the interview lol. Other than that, it's pretty easy. You can split screen your Zoom with a word doc with notes and you even have time to google stuff while others are responding, which leads me to another point. There isn't a set order that people talk in and they don't call on you, your turn is when you make it your turn. Don't be passive and wait to be the last person on every question, but don't be that person that always has to be first to the punch. (Fwiw, I was accepted.) Good luck!