So I've set 'hscroll_high' to a tiny 2px to just give the visual indicator that there is scrolling, but this is obviously not a very functional scrollbar otherwise.
However, in some rare cases of very long names, for example
C:\ProgramData\Microsoft\Windows\Containers\Layers\56773289-8d04-4a8b-9b99-32e35c1dd705\Files\Windows\WinSxS\amd64_microsoft-windows-a..etedfeaturedatabase_31bf3856ad364e35_10.0.26100.4484_none_84ba14a600bf1985
when you max the column width it might be more convenient to use the scrollbar vs. other methods.
One cool thing I've seen some UIs do that resolves this tension of the scrollbar always taking space (so you'd like it to be small) vs using it with a mouse (so you'd like it to be big) is
proximity-based sizeThis way you can have the best of both worlds: tiny scrollbar when you don't need it, and very big and comfortable to grab when you do
This would be especially helpful for the vertical scrollbar, which I do need often enough (since lists can very big, so mouse wheel scrolling isn't practical) so I can't make the default a tiny 2px just like the horizontal scrollbar
What do you think of such a cool UI feature?