+1 and beyond those specific examples I don't think people have had a chance to fully setup a successful work from home "environment" which might include: dedicated room/office, better connectivity (internet/webcam/headphones), and proper routines/habits.
I imagine most people have moved past the "throw a desk in an unused area of the house and work mainly off a laptop" phase of WFH and in to the "have additional monitors, a quality chair, and access to basic office supplies" phase... there's definitely more phases that need to happen and to use the current/limited/reaction based setups as an example of what full-time WFH is is shortsighted, IMHO.
Also, there's a company/team culture shift that needs to happen too, which to the parent's point, is hard to just magically do while also balancing all these additional "challenges".