Figma excels at visual design and collaboration, but treating it as a faithful representation of the web can lead designers to overlook how interfaces actually behave in real-world conditions. Static artboards and Auto Layout can mask challenges such as responsive behavior, loading performance, accessibility, unpredictable content, and dynamic states. As products become increasingly adaptive and AI-driven, designers need to think more like systems architects, testing ideas in code, designing for edge cases, and grounding design systems in production-ready components rather than purely visual artifacts.