So then you hug the right edge of the screen, looking for it, where it looks like it is, and where it's been for like the entire history of computing, and then you click, and there's just nothing there.
This is a special case of Fitts's law, where a button at the edge of a screen becomes effectively infinitely wide, as far as ease-of-clicking goes.
This was used intentionally with great effect on usability in the 90s and 2000s. (Scrollbar, start menu, show desktop, etc.)
In the last decade however the trend appears to have reversed: it is now fashionable be to make the scrollbar as difficult to click as possible, by offsetting it, making it narrower, or hiding it altogether.
https://github.com/zen-browser/desktop/issues/1126 is the issue, closed as they won't fix it (thus my snark).
> In the last decade however the trend appears to have reversed: it is now fashionable be to make the scrollbar as difficult to click as possible, by offsetting it, making it narrower, or hiding it altogether.
Afaik Ubuntu jumpstarted it with their minified GTK scrollbar, used in their Unity DE. But that thing was actually smart: It slimmed down visually, but as soon as the mouse entered its region you got the scrollbar handle at the mouse pointer's position. So it made manipulating the scrollbar even easier than a fullsized scrollbar (for at least some usage) while looking nicer. Ofc that usability aspect is something the CSS reskins and other adaptations promptly and completely forgot.