Main reason for me is because I don’t have to manage the position or size of apps I open.

I prefer a tiling WM for programming work. On my personal PC I actually use GNOME or KDE or something. But on my old study machine and my current work machines it’s i3 all the way. Being able to quickly tile 4 terminals together makes my work much easier. Often I have many terminals open, each with a bash history specific to what I’m doing there. Workspaces then act as a sort of bundle of applications with the same general purpose. For instance, one workspace for installing and copying stuff to a machine, another for VNC related stuff, etc. If I’d have to alt+tab between 8 terminals I’d never know which one is which. But now I can remember them by location which is way easier mentally. Similarly I sometimes have multiple projects open in an IDE, and I usually remember which workspace is for which project.

It’s even better on 4K monitors, where having 4 1080p terminals open is amazing. I can see everything and I only need to move my eyes. No keypress to switch terminal, everything is right there.

I’ve configured my entire interface to provide the most amount of input bandwidth for me so that I never have to wait for the computer to do what I want. I3 vim and vimmium solve my problems