I don't disagree with that. My current office people keep about 6 hour workdays, including their lunch break. We're also multi-national so overlap is usually where shit gets done. I have many days where the bulk of my productivity comes in 1 hour of a call with a Portuguese or American engineer. (I'm in Iceland).
That might sound like a case for being remote, but for me, it's usually been much more effective in the office because that single hour of overlap was most of the day. Yes, some of it is wasted time, but I did and still do build great working and personal relationships with my peers in that "wasted" time that I still cherish.
Most office workers work 2-3 hours a day max. The 8 hour workday is is a relic from factory work.
If I was to go back to the office, this is what my day would look like:
* Show up at the office at 10:30, just in time for the meeting
* Put in a couple hours of solid work, finishing whatever story I planned to complete today
* Go home at 1:30 to smoke weed and play videogames
That's what I do now, except I don't have to commute. What's going to change to make office work more appealing?