In general. Most time is spent on command line in so-called virtual terminals (VTs) with no graphics layer and no GUI. All programming is done without a GUI or IDE.
I do not use a terminal emulator^1 inside X11, or something like X11. I no longer use X11. Nor do I use VMs. I write scripts and compile programs on small, underpowered computers.^1 IME, switching between graphics layer and console text VTs (e.g., Ctrl+Alt+F2) is slow, so I have learned to stay in one context. I prefer VESA textmode on older computers and something like VESA textmode on newer ones.
It would be nice to have a framebuffer instead of GUI where I could view images, watch video, etc. without having to use a different computer or switch contexts.
1. I do use a terminal multiplexer (tmux).
2. If I wrote scripts and compiled programs on a larger, more powerful computer I would be less sure that they would also compile quickly and run fast on smaller, underpowered ones.
