Maybe you're right - this happens when I open a second window with other stuff and placing them parallel.
But this doesn't explain why the other scroll bars look fine. Have you got any idea?
I think something is wrong with this one and it's because settings page isn't often visited so no one reported this.
IMO aspect ratio doesn't influence into the second issue. Anyway, looks bad on PC and smartphone (even on full screen). Another example:
As you see there is a lot of spacing between 'Stats:' and 'favorite position' so they should increase the spacing between these numbers or just remove '.0' at the end of the value of stats.