While I still prefer a private office, open offices don't bother me precisely because I'm an introvert. Headphones plus some synthwave and you all disappear.
While the headphones can fix the noise/distraction stuff, it doesn't magically make additional space appear. You can see in the image on the Medium article just how much space the author has at home; compare that to the Facebook office picture (I think I might actually have less space.) With more space, you might be able to do things like put up charts/diagrams, put a whiteboard on a wall (if I only had a wall) / have space to have one of those rolly ones like in the FB picture. (we lack the space for a WB…)
Then there's the increased incidence in disease.
Oh, that's an excellent point, I guess my experience with open offices still provide a reasonable amount of space for each person so you weren't crammed on top of eachother.
In 2011 I interviewed for a dev position at Kabam and the layout in their Redwood Shores office appeared to be the sort of middle school cafeteria tables -- the really long faux-wood tables with attached seats -- with people crammed in side by side all along it and this jumble of wires in the middle that is probably still tangled to this day. I grabbed a second free coffee and walked out on that interview.