Scrollbar seems to small for how much has to scroll, maybe can be revised/fixed?
Is not a bug, more a nuisance but indeed is a bit confusing because it has no logical/intuitive linking between scrollbar length and scrolling distance.
What do I mean by that?
Normally, a scrollbar should have its length proportional to how much it has to scroll (unless is too much to scroll, then is just locked to a small defined size).
General scrollbars behavior: