For example, when writing web assembly:
- Primary monitor: vim (in tmux, multiplexed for build and other commands) - Secondary monitor: Web browser to test the code.
Similarly depending on what I'm doing I have such a 'division'. I'd hate to miss that when using just one big monitor.
If I would use a 4k monitor, I'd hate to be using windows or mac because of the window management options. I'd definitely want to be on a decent tiling WM.