A bit off topic, but I can almost guarantee that if any employees (of Apple or otherwise) are working half the hours because they’re working from home now, those are the same employees that did half the work they should have when they were in-office.
I just saw something about productivity numbers being up yet again, so I don’t think that overall more people are working less. Working from home, once you get used to it, may include doing the laundry or going for a walk in the afternoon, but then you also end up starting to work earlier in the morning and later at night, because it’s easier to do whenever something pops up. I’ve worked primarily from my home office for more than a decade and I definitely put in more hours than when I worked at the office, including my 90 minute commute time each way (even when I factor in responding to forums like this occasionally).