During a design sprint, what is the primary focus regarding user feedback?

The primary focus during a design sprint with regard to user feedback is testing prototypes with actual users. Design sprints are structured to gather quick insights by putting tangible products or prototypes in front of users early in the process. This allows teams to observe how users interact with the designs, gain direct feedback, and understand whether the users can achieve their goals using the prototype.

Testing prototypes is crucial as it helps to validate or invalidate hypotheses based on real user behavior and reactions, thus ensuring that the designs are user-centered. The emphasis on prototyping in a design sprint is aimed at minimizing assumptions and fostering an iterative approach, where feedback directly informs the subsequent design iterations.

While understanding the design challenge, creating wireframes, and ideating multiple solutions are important parts of the overall UX design process, they do not focus on gathering actionable user feedback in the same immediate way that testing prototypes does.