Skeletal issues from sitting at wrong heights from screens, covered by health and safety in an actual workplace.
You clearly don't work for a Local Authority, where hotdesking has been the norm for years.
WFH I have been able to set myself up much more comfortably than trying to grab a desk and chair that is different each time you go in, under a ceiling that flakes so much you have to clean your desk each time you go in and toilets that don't always flush and have mould on them.
My H&S if MUCH better at home thank you very much.
snacking instead of proper breaks,
eh ?
I am much more likely to 'snack' in the office, where people bring treats in, than at home, where I don't buy them.
I'm also much more likely to have a proper break, as I can use the time purposefully at home whereas it is just 'trapped time' in the office, where you can't get anything constructive done.
not walking to an office
When I go in to the office, I get in my car on my drive, sit in it for about 75mins, then get out in the carpark and walk 20 yards or so into the office. At home (without the commute) I am much more likely to go for a walk round the block, or even to the local shop, or for another appt (dentist, haircut, Dr, optician, etc). My colleague takes her dog out for 45 mins in the middle of the day, which I think is a really healthy way to break up your day.