Figma Constraints vs Auto Layout: when are Constraints preferable?

This tests resizing logic between parent and child layers in Figma. A strong answer defines Auto Layout as a system that resizes frames to fit inner content, like buttons that grow with longer text. Next, it defines Constraints as rules that pin or scale objects when their parent frame changes size, essential for responsive design. It then names a scenario where Constraints are better, such as a fluid input field inside a card that must stretch to fill width.