While folks are rightfully bashing macOS’s hidden scroll bars, I would like to advertise an iOS feature that is actually pro-scroll bar. As of iOS 13, you can grab the scroll bar to scroll at hyper speed rather than repeatedly flicking the screen. Not sure if there’s a proper name for this feature but it’s explained here https://www.idownloadblog.com/2019/08/05/scroll-faster-iphon...
This "feature" has been available on every Windows, Linux and Android device I have ever used.