This makes perfect sense to me - sticking to a word processor from the 80’s because that’s what your fingers know. Heck, I kept using Wordstar for everything I wrote for almost a decade after switching to Windows 9x for internet access.
What doesn’t make sense to me is downgrading from a fully capable text editing software like Wordstar (or something more modern) to a glorified typewriter in search of a “distraction free” composition device. Sorry, but the problem you have with distraction is between your ears, not in the device you’re using.
If you must, install linux without any GUI and rip out the wifi card from a dedicated writing laptop. But pursuing a special “distraction-free” writing machine is I think just succumbing to a different kind of distraction.
