One of the most annoying aspects of Windows after using Linux on the desktop for 10+ years was how the mouse wheel scrolled windows.
On Linux desktops I could hover over a window and scroll it without focusing. It was really useful when I had a browser window with instructions behind a terminal or just comparing the contents of two windows. The same happened when scrolling panes in file managers. I could scroll directories when hovered over that side of the window and files when over on the other..
So, imagine my frustration when I realised I had to click the side of the Explorer window I wanted to scroll in Windows? It was doubly annoying if I had selected files as I’d have to click an empty area or CTRL click an already selected file to select that side of the window.
"Scroll like you mean it in Windows",