TL;DR: Figma, Lovable, v0, and Claude Design are not the same tool. They pick different starting points: the design file, an idea, a component prompt, your codebase. Different starting points, different jobs.
If you have shipped a product, you know the cycle. Brief to designer. Something comes back that does not quite match the brand.
Revise. Engineer reinterprets the spec. Revise again. Two weeks