Interviewed for a PM role at Gameberry Labs and got a product sense question about Instagram's teen engagement. Pretty focused session, just the one meaty case question from what I remember.
“I went straight into user segmentation, which felt right, but I spent way too long on the problem space and rushed the actual solutions.” The rest of the author's notes on Product Manager interview at Gameberry Labs, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.