Image above cheat sheet: "Designers can create the right pathways, but users will do things their way. Knowing what those habits are-- will help you add shortcuts that make the journey more comfortable, and lead to better business outcomes for you" - Frank Spillers (UX Trainer / Chief Experience Officer, Experience Dynamics)
Summary: UX Design and Visual Design, while related, have very different approaches and intentions. Visual design is about helping users see controls, menus, buttons and areas of a screen where they perform an action, for example. UX Design helps define what should go on the screen, in the first place, and helps define interactions that reinforce Key Performance Indicators like engagement, adoption and task success.