Even if bangs are not universally the best option for round faces, they still go well with most round-faced people. The most exciting thing about bangs is that they are a simple hairstyle that can be done in many ways. Anyone can rock bangs if they have the right haircut and styling.
Coming back to the question, it's hard to say if bangs are the best option for round-faced people. But they do look stunning, as we can see on various celebrities.