A core Product Manager (PM) and a Growth PM both work towards the success of a product, but their focuses differ. A core PM is responsible for defining the product's vision, strategy, and roadmap, and works cross-functionally to launch new features or products. They focus on the entire product lifecycle and ensure that the product meets the needs of customers and achieves business objectives. On the other hand, a Growth PM is specifically focused on growing the product’s user base and revenue. They leverage data to understand user behavior and identify growth opportunities. Their key responsibilities revolve around optimizing the product for user acquisition, activation, retention, and monetization. They usually focus on the existing product rather than creating new features or products.