I actually do use three 24" 16:9 screens, side by side. Though small by anyone else's standards, 24" is sort of the perfect size for the three monitor setup. It

I actually do use three 24" 16:9 screens, side by side. Though small by anyone else's standards, 24" is sort of the perfect size for the three monitor setup. It doesn't make me strain my neck _too_ much, but also isn't so gargantuan that I can't fit three on my 5-foot desk. I split each monitor down the middle, treating it essentially as a viewport for two windows. Optionally I sometimes fill one screen with a single window, but I never overlap screens. On my home computer running Linux (Cinnamon) this functionality is built in; on my work laptop running macOS, I use Rectangle to accomplish the same thing. I did have three 19" 4:3 CRTs, way back when - beautiful Sun Trinitrons. They took up the entire desk, but I could conveniently stack equipment on top of them (speakers, a clock, an FM radio, etc), because they were so large. But my workflow for those was different - each monitor _was_ a single window, as splitting them resulted in windows that were too narrow to be useful.