By the GPM, Director, and VP level, this question is not about which project. It is about what makes one project stand above a whole career, and whether the interviewer leaves convinced you can solve their problem.
What changes when you interview from L7 to L8, L8 to L9, or into a VP or head of product role, and how to make them feel you already operate at that level.
What companies like Google and Meta evaluate at L7, L8, and L9, why L6 interview prep stops working, and how to get your stories to the right altitude.