I said at the start that the shine would wear off, and it has.
All the claims by the newly converted zealots that they were 10%-15%-20% more efficient, (when there was only the same amount of work in total coming in) have come to nought. They were fine when they could take the lappy into the garden on a summer's day, then came the autumn and winter and slowly WFH they have taken their toll.
The new thinking from various major (office based) employers looks to be that the working week could be split 3:2 or 2:3 for those who want it, but ever so many are clamouring to get back full-time.
It is no surprise, really. We are social animals and that interaction with others is vital for the well being and good feelings of many of us - Covid has strengthened that.