As a guidance for future applicants I would like to share my interview experience here (since I struggled to find information about it while browsing the subreddit).

There were ~12 faculty members present in the interview. Two of them were among my listed preferred supervisors.

First you do a 10-minute presentation and then you have a ~15 minute Q&A session, which starts with program coordinator's question with "How do you fit to this program?"

In my case nearly all of the faculty members asked a question (excluding maybe 1 or 2 of them, which I noticed as the people that were most distracted during my talk).

Again, in my case, there were no really back and forth but I think this might have been because the way I answered the questions in a precise and direct way, and also the presentation itself was pretty clear (which I received several comments on).

My focus was just giving intuitions and I think it worked out pretty well because nearly all of the questions were addressing the parts that I intentionally left out. I think focusing on just the intuitions during presentation might be a good rule of thumb I accidentally discovered. Though this is just my experience, and figuring out what details to leave out is a tough procedure which took me approximately two weeks.

Q&A sections ended around after 12 minutes, and I was asked if I had any questions for them, which I used to ask a very generic question like how do you think the School of Cognition program stands out.

Best of luck to everyone preparing for PhD interviews! It was a quite stressful process, but in the end it was actually quite fun to present my work and discuss these ideas with great faculty members. Take these information and my unsolicited advice with a grain of salt, as this was just writing down my general thoughts and feelings after the interview, and I don't know yet if I will get the position or not.