I am not sure who is Director of UI and other visual experiences over at Apple but their web page for the upcoming Big Sur release of macOS has to be the most awful design in Apple's history (fonts too big, too many obnoxious colours, non-harmonious colour schemes, erratic zoom scrolling effect, way too many bubbles, too many images, disorganized layout, headache, pain, suffering...) :
I actually miss the old UI design: