And messing with the UI is the single most salient thing that makes regular people hate using computers, and do so only when it is required. It doesn't matter

And messing with the UI is the single most salient thing that makes regular people hate using computers, and do so only when it is required. It doesn't matter what is their justification about making something "better". The industry has reached saturation; there no longer exists any justification for making a UI somehow "better" to invite in more users. Changes ONLY create frustration and anger among existing users, which is essentially everyone at this point. Changing the way a UI operates is like in an automobile swapping the position of the accelerator and braking pedals and moving the windshield wiper controls to the center console, heater controls to a steering-wheel stalk, and then claiming it is a "New Fresh User Interface!!". Of course people CAN adapt, but they will not like it. And automakers are already discovering how moving features from tactile knobs & buttons to a center touchscreen is hated and are going back to what people know and like. It is past time for the software industry to get the message.