On other hand most people put even less time in while WFH. They still cook breakfast- only now it is for them, their spouse and kids. Then they need to feed the kids and probably also take the dog out. The we have a daily stand up and they start to think about going to the store to pick up something they forgot so they can start making lunch - again for whole family and feeding the kids. Then they get a little bit of work in with the same food coma as you described until its time for “remote coffee hang out” to make up for the lack of social interaction. And after that their spouse goes to a walk or to the gym with the neighbor so they need to watch the kids while still on the clock.

Active work done per dat hovers around 1-2 hours and most of that is done while a kid is watching cartoons on full volume in the same room and constantly interrupting.