Scrollbar issues

[ejc]

Some time ago, someone complained about scrollbar behaviour on Ubuntu and derived OS.
Solutions were offered here but will they work if I try it with LL ? They din't look easy to use for a beginner like me.
https://unix.stackexchange.com/questions/276005/scrollbar-moves-to-where-i-click
https://unix.stackexchange.com/questions/182186/how-to-change-scrollbar-action-in-gnome-3-10
They also say to right-click instead of left-click to move through the doc or page, but does that work in every app or there is a better fix?