Do you hate seeing a sliver of light between your monitors? I sure do. I’ve spent a lot of time getting my monitors lined up just right so that they are flush against eachother with no gaps. However, a slight bump of the desk can throw all that hard work out the window.
So, I figured out another solution. Instead of adjusting the monitors to make sure that they are “perfect” I took some black electrical tape and ran it down the seem behind the two monitors. The black tape matches the black border of my monitors and it blocks any light from coming in!
I highly suggest running black electrical tape down the back seem between your monitors. It really helps!