Your question is Assess Feature Impact on Engagement. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you assess the impact of a new feature on user engagement? Explain which engagement metrics you would select, how you would compare users exposed to the feature with an appropriate baseline or control group, and how you would distinguish feature impact from seasonality or user-mix changes. Describe the analysis, decision criteria, and guardrails you would use.