Doesn’t help when you truly don’t have WAN connectivity. Imagine working on an airplane where the wifi is unusable or unavailable, or working during a long NYC subway ride (where even mobile data connectivity between stations is only occasionally and transiently available in the underground segments of the system).
Over the past decade I'd reckon 1/4 of my productive output has been whilst sitting on some type of conveyance. Some of the intervals in that period have stretched from 6mo to 1.5 year where >50% is while commuting or otherwise traveling.
Honestly, I'm either on the clock or off, and I have better things to do with my time than look out a window when I'm not being paid.
I used to do code reviews and catch up on email on my phone while on the train. It let me leave the office sooner. The metro runs underground, so there's nothing out the window to see.