Apple Product Design Engineer interview questions

Still in the interview process and just passed the first phone interview. During the COVID the recruiter told me that they have shorten the interview rounds. The first two round is phone interviews, then followed by a Design challenge.

The interviews were professional and challenging. Started with 3 phones interviews and 2 on site interviews. I got connected with Cupertino team for the final round. All interview was all about testing technical background. Took me about 5 weeks overall. Great experience.