Our office closed in March, when the virus first hit Australia, and people went into full WFH for a couple of months. The office reopened in July, with people allowed to choose whether or not they wanted to work in the office, or work from home.
Our whole company was told they could work from home or office as much as they want. Almost everybody was doing 4 days a week in the office, which is pretty much the way it was before.
A very small amount have been choosing between 0-3. But I’m expecting most of them will give that up after they realize how much harder it is to got pay rises, promotions or interesting projects to work on when you’re the only one in the team who’s never at the office.
You're in the US though, right (based on your username)?
Over here in The Netherlands, for one, I imagine a ton of workers aren't back in the office because our government is actively encouraging people to work from home. From what I can tell it's not mandatory, and I've heard from a few friends that they're back in the office more, but all those who aren't 'strongly encouraged' don't seem to have any desire to be in the office for four days a week and instead only show up sporadically (for meetings and whatnots), if at all.
While as a WFH freelancer I can't tell for sure how things are working these days, I've noticed a few things:
1. whenever I go to my coworking space, it's still much quieter than usual.
2. in the morning I hear fewer people leave the apartment block, and fewer cars leaving the area.
3. official numbers of people using public transport (quite common here) are something like 40% down.
Most people chose to continue working from home.