First there was an over-the-phone interview with a leetcode easy problem. After that I was invited to Seattle for a final round of interviews.
In the final round I was asked 2-3 different leetcode easy to medium questions by software developers. I was also asked a couple questions by an engineering manager. At the end a senior developer asked me an OOP question.
Interview questions [1]
Question 1
Can't say due to an NDA, however make sure you know OOP, for example, you should be able to talk about designing a game like pong. Probably should start from user requirements.