There is a team in my company where people steal each other’s monitors. Everyone already has 2 monitors, by default.
But still, after 2 week holidays you can be sure your monitors won’t be where they used to be.
“Why do they need 3 monitors?”, you may ask. Maybe to feel more comfortable. To have separate monitor just for Spotify or for writing e-mails. Maybe to be more productive. To put unit tests window on the first monitor, test class on the second one, and the thing that is being implemented on the third.
I had an opportunity to work on three monitors. And I lasted in that state for about 4 days. Now, I’m pretty sure that it is one of the best things you can do to lower your productivity and I would never do that again.