Hot desking
Hot desking is high on my list of Very Bad Ideas. It's inflicted by people whose working lives involve lots of meetings and visits to branch offices upon people who spend the entire day in the same seat staring at the same screen.
I've worked in a couple of investment banks so crowded that you'd run the risk of spending the day sitting on the floor if you arrived late. Or you might find a vacant desk in the far reaches of the room, only to incur the implacable hatred of the neighbouring workers for being a foreigner who's stolen the desk of the person they're used to sitting next to.
Working from home is supposed to facilitate hot desking. What actually happens is that you're sold a job on the basis of "WFH one or two days a week", but after a while the management reverts to its bums on seats addiction, and you can only WFH with prior permission, which will only be granted in exceptional circumstances. So they cram in more desks, to the point where you can only lean back in your seat by agreement with the drone who's sitting behind you.