I had the same feeling about 10 years ago before I got a new mouse with a wheel for scrolling. Prior to that the increasingly vestigial and disappearing/reappea

I had the same feeling about 10 years ago before I got a new mouse with a wheel for scrolling. Prior to that the increasingly vestigial and disappearing/reappearing if hovered over scrollbars were a huge annoyance. There should be a part of UI design that is concerned with the foibles of the particular user and automatically customizing the UI to fit them. For example font size based on age (if known). So if you enlarge one browser tab it might enlarge others until the font is a similar size.