As someone who currently sleeps, works, and relaxes in the same room these absolutes you're throwing out come off as hilarious. I've literally always lived in a room with both my bed and my computer, always worked and gamed from my computer, always slept within a couple of meters of my desk chair and computer.

You absolutely can work, relax, and sleep in the same space.

Does that mean I prefer that? Could I gain some meaningful benefits from having more spaces to dedicate to certain tasks? Absolutely. And the moment we tax the ultra-wealthy out of existence and therefore make housing affordable again, I'll make those rooms.

But working from home is not reliant on a square ft/m metric that the home must pass, nor how those spaces are organized or themed. I think saying it does only hurts my ability to stay at home, which is better for the environment, the economy, my productivity, and most importantly my life and mental health.