The interview process was smooth, first did an OA (mine was fairly straightforward but a friend of mine did it as well and theirs didn't seem as simple). In the initial phone interview they asked me to replicate a simple board game. I managed to over complicate it so I was surprised when they moved me to the final round. Final round was two back to back interviews with engineers from the team I ended up working on. They both started out with easier questions and built upon them (I would compare the initial questions to leetcode easy) .

3 rounds of interviews, all oop, pretty simple lc easy/medium. Rejected for headcount. Practice LC implementation, usually 2 followups. The main thing is to implement quickly and note limitations while doing so.