In Finder’s column view, a quick way to resize columns to exactly fit the width of the widest file name is to double-click on the two tiny vertical lines at the bottom of the column. But in 26.2, I’m finding that there is a translucent dark scrollbar covering the double line, so if I double-click where I see the lines, it just moves the scrollbar around.
It happens in folders with a lot of items. Anybody else seeing this, and better yet, know how to fix it?