Screenshots of your desktops + wallpapers.

Yes, the monitor is still square.

As you can see in the screenshot, all my visual settings are set to the minimum. Doing this to improve performance in 2015 is just as bad as using a square monitor.
And as always, one of two situations: either there's almost nothing on the desktop, or there's a lot of clutter.
I've noticed that I like a dark background on the sides (although in this particular case, there's too much empty space) - I like to place shortcuts, folders with frequently used content, etc., in these "zones."