I tried editing code on a mobile, even tablet, before, thinking "I have all this downtime where I'm mindlessly browsing on my phone, think of how productive I could be if I could code during that time!"

The reality becomes that those places are usually too distracting for me to be in a coding mindset, and even when not, typing code using a non-physical keyboard is tiring and cumbersome. Even just the occasional mistype stops my flow as I have to back up and fix the letter or number now that I'm several characters past it.