Two days to be lazy and not have to drive into the office?
I can’t speak for everyone’s experience, but I can speak for my own as a web developer. I work Mondays and Fridays from home and drive in Tuesday through Thursday, and most of my most productive days have been at home, maybe because I live alone, don't have pets, etc. — so there are absolutely no distractions, aside from the occasional Slack message.
Very rarely are those of such priority that I can't wait to reply until I get to a stopping point.
Granted, I'm consistently productive, so my employer trusts me, which is unfortunately a radical concept for some.