A cynic could argue that only an open office plan made this toxic work environment transparent to you.
The tragedy of the commons part, though, looks like a structural problem to me. It's pretty common to want a discussion with 3-5 people for 5-10 minutes. With offices or even cubes, you can just have that in the workspace. With open plan, you either annoy everyone around you or book a conference room, which takes it away from standard users.
I'm not sure what anyone at the peon or even manager level can do about this, except try to keep meetings short or relegate them to slack/email. It really is a design issue.