I read your post expecting you to say the opposite OP. I've wfh for years and in my job it feels like being a bit of an underclass, in that I'm freelance, I've got no job security, work pension, sick pay, etc. I'm not well paid and I sometimes work more hours than I'm paid for just to get work done, don't always get breaks, etc. It's also hard to have a clear divide between work and home, so I've got kids needing supervision, I'm making stuff for dinner in my break time, etc & my family forget I'm at work because I'm also there. I know from talking to colleagues that this isn't unusual for home workers.
I'm lucky I have an office area but, as others have said, plenty work on their bed or at the kitchen table with a normal chair, none of the health and safety checks you might get for your desk at work, so maybe there will be an increase in back problems, RSI, etc at some point, and what rights will people have if this causes longterm injuries?
OTOH hopefully more people working from home, and particularly employees rather than freelancers, might mean an increase in status and a better understanding from other family members. I did have a job years ago where they ran a wfh trial and there was serious resentment from many who weren't picked to take part, so I guess I should have see the other side too, that some people might see it as a more desirable option, though a friend I spoke to yesterday was saying how much of a relief it was to work in her old office for the first time in ages and see other people in person and see a different environment - it could work both ways.
I also heard or read somewhere in the last couple of weeks that London Zones 1-2 rents have plummeted, and it's mainly from people moving out of shared houses to pay the same for more space in suburbs/nearby towns to make working from home more pleasant and not be stuck in a bedroom. I wonder how those people will feel if they're asked to go back to their old workplaces?
In my idea world (COVID aside) I think I'd like a mix - I like the flexibility of wfh, but I also like seeing real colleagues face to face sometimes, and I would really like the security of being an employee and having a well-designed workspace.