Your question is Notification System for Windows. 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).
Design a notification system for Windows where different applications can generate and display notifications (AI tools allowed during the round).
Asked in the LLD stage. Explain the component and API design, then add an ML-based prioritization layer if useful. Discuss how notifications are ingested, stored, ranked, deduplicated, delivered, and displayed across Windows devices.