I’m able to get an absurd amount banged out with just my thumbs. I’ve taken comprehensive meeting notes this way. Possibly the reason to do it for coding would be the ability to code from anywhere for quite a while on battery/cell. Mosh does not take up much bandwidth or power.

As an example, I worked on some professional projects over mosh on my iPhone to my home network from work. My job at the time made a lot of time demands on me, but I had already mastered whatever professional growth I could in that position - so I took to setting up and learning tech that way.