In 30 years of working life, I've experienced a variety of working environments. I've had private offices at two companies I've worked at (ISI and Telegenics), mostly cubes, some places having strict hierarchical rules about cubical size (at my first job employees got their own 6x6 cube, contractors had to share a 12x6 cube with another contractor). One company had me literally working at a table in the cafeteria. But what I've noticed is that workspaces are shrinking and privacy is disappearing. My last in-office position didn't even have permanently assigned workspaces—in fact there was a mandatory remote day for my group because there were more employees than desk spaces (the status hierarchy still remained, but now it was defined in terms of private storage space: employees got a lockable lateral file drawer, contractors got a 12x12x12 locker which was supposed to be vacated at day's end.
I've spent all of 30 minutes in my current employer's office on a day when the only other person there was the HR person checking my documentation. It looks a little better, but not much.