>from open office to plexiglass dividers seems to be far worse

it would allow to even more increase density, even beyond open floor office, so it is "better" for a specific corporate definition of "better". The definition that has been driving the density increase during the last 3 decades from private offices to open space. If not for coronavirus, the next density increase would have taken like a decade too. Now we're going to jump straight into it. Into our personal cozy aquariums. Office dress code - goldfish. Or crabby.