Whether you create your product for external clients, consumers, or internal users, your users will eventually see some version of your product. Maybe that’s a wire-frame, a clickable prototype, an interactive prototype with dummy data, or a live product.
https://www.brainleaf.com/blog/brainleaf-news/prioritize-user-feedback/
In order to get feedback you can actually use to build a better product, you need to know the right questions to ask, and the right answers to look for.
https://usabilityhour.com/user-feedback/