My most productive time each day is the ~half hour on the bus or train to work. I plan my day, answer all simple emails, and when I’m in the office I can get right to the important things.
I get that many jobs (and even more employers) require 8 hours attendance, that not everyone has volunteer work to do when they can’t work work on their commute, and that some public transport doesn’t accommodate any kind of being productive - but I’m still amazed at how many people prefer say 40 minutes driving to an hour sitting on a train and a 10 minute walk.
There are also other ways to reclaim dead time on public transport like reading a book, listening to podcast, or just plain relax. You can't do those while driving without compromising your attention and (therefore) safety of yourself and others.
I get that many jobs (and even more employers) require 8 hours attendance, that not everyone has volunteer work to do when they can’t work work on their commute, and that some public transport doesn’t accommodate any kind of being productive - but I’m still amazed at how many people prefer say 40 minutes driving to an hour sitting on a train and a 10 minute walk.