Yep and the figures were originally quoted quite some time ago and haven't changed much to the end of last week when it was being discussed again.
I've been talking to a senior HR figure for a large organisation this morning about the return to the office. Certain amount of people, probably about 35% have returned, but some who asked to come back are now asking to return to working from home because they hate the sterile and distanced way of working. They missed the office while at home, but the office isn't like it was previously and they see little point in being there until it returns to normal. These tend to be people who work in smaller teams, rather than the bigger customer facing parts of the business who don't get a choice and have contact with others all day.
I get that, the office can be a really social place, but if you are in a form of lockdown while your there, you might as well do that from your home.