As someone who is in the maximalist camp (as opposed to the minimalist camp) I love this idea: Why I Use 3 Monitors to Boost Productivity (And You Should, Too) | Inc.com. It’s hard to pull off at home, but I have such a set up at home and it really does work. I have a monitor off to the side for messaging systems and email, I have a second monitor attached to my laptop which I use for what I am focused on, and I have my laptop screen I use for supporting my focus work.
True, if you have a Mac, you can have multiple Desktops and easily swipe from one to the other. I do that in workspaces where I can’t have multiple physical monitors. When I can have them, I like the multiple physical monitor approach. Frankly, I would like to have even more!