I was working with a product few days ago and interacted with various stakeholders who have seen the product and users closely. Unfotunately, I did not have access to the user base and was not able to conduct research study on user behaviour.

There were couple of feature sets that the stakeholders wanted the re imagined product to have. For example, using a particular UI elements (button/accordion/radios instead of dropdowns for more than 3 options) is used by the user extensively for long time.

Now the question is do we design for users or as per correct UX practices (consider example of using radio buttons for selection instead of dropdown when there is 5+ options to be selected.

What would be your strategy or the workable strategy in such cases?