when I did mine, it was online on a zoom/Teams call. I basically had a speed dating interview, except it was with different team members at different levels of the organization. The intention behind this was genuine, but it felt a bit synthetic on their end. It last about an hour, and you had the chance to speak with each member for about 15 minutes.
You had a chance to then ask questions and they would ask as well. All of the questions were basic nothing too crazy. It all went sour though when I spoke to a senior associate and asked them about what challenges they'd dealt with working here and it became a awkward conversation about how they deal with the challenge of recently being overlooked for a promotion. They clearly seemed upset and hurt by this, but it was such an awkward experience on my end.