[mnutt]

Without going into who is inherently better at design choices, the problem often seems to be with the process: UX/UI designer sits down and builds some mocks, then hands them to the developer to implement. The developer sees that the mocks as designed go against the grain of their chosen framework/platform, and they have the choice of either implementing them in a hacky way, or pushing back and finding out if they were intentional choices or merely weak preferences.

They’re almost always better off spending the time doing the latter, or even better, working with the designer during the design process to both understand which decisions the designer actually cares about as well as communicate the platform constraints/preferences to the designer.