1. Those programs exist because there is a need to get out of the mess that Word is. 2. Programmers do have amazing apps, writers don't. 3. Fullscreen is not the solution to absence of distraction. I can work perfectly distraction free in Firework without going fullscreen. Cross editing is the main sickness of digital writing.

The key is a predefined writing-optimized typography that justifies the absence of formatting (a massive distraction) and a sub-mode that gets rid of all the visual clutter when necessary. Some think that Focus mode is just a gadget. It's not. The noise that is similar to the signal is the most distracting.