You know, I was in complete agreement with the article and I was considering a 1440p monitor or something until I saw your comment and reflected on it. The most productive periods/jobs I can remember were on i3wm with a Goodwill 900p/19" monitor and a 20" iMac 10 years old at the time. But it's because I had access to good tools then like Neovim/Atom respectively. My work now requires an RDP Notepad.exe session so there's no monitor that will help me there. I guess software tools are way more important.