I had two phone interviews and a final round video call. The interview questions were challenging, but I didn't have to solve them perfecty to get the offer. It was a good experience overall.

First I was reached through Piazza, which I didn't know happened. Had two video technical calls, they were both pretty on the easy to medium difficulty side, the first one was more of a "brute force write this" "okay now write it with this condition" and all the way to "write it in one line". Pretty fun interview. Second one was with a more awkward engineer, but the problem was quite difficult. Can't remember what it was though sorry.