Meta onsite E6 - product architecture

I completed a phone screen for a level E6 position a few weeks ago. The interview began with 15 minutes of behavioral questions, followed by two moderate coding challenges which I completed ahead of schedule. I had a few minutes remaining for questions at the end. I was informed two days later that I would be moving to the onsite interview stage. The interviewer was excellent. For the onsite interview, I selected the product architecture track because it aligns with my background and experience. I have two product architecture interviews scheduled in the coming days. I am curious if it is acceptable to discuss design from an AWS architecture perspective. All design questions could potentially be architected using AWS services such as API Gateway, Lambda, SQS, SNS, and EventBridge. I have extensive experience with AWS architecture and am wondering if this approach is permitted in Meta's design interviews.