Your question is Extend a Standardized Design System. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You're designing a new product flow and need to decide how much of it should be built from existing patterns versus where the system should evolve. You want to avoid one-off UI decisions, but you also don't want to force the product into components that create a worse user experience.
How would your proposed solution leverage or expand upon a standardized design system?