I actually am prevented from learning when I am forced to overhear exchanges between other teammates. Most of the exchanges are not relevant for me, often they are not discussing anything work-related as well.
It also swiss-cheese's my schedule, because instead of setting aside dedicated time for pair programming and for information exchanges or meetings, like you would think you should do in a professional workplace, those events are now thrust upon me even when I might be trying to finish some other work or I might have to urgently focus on something else.
The entire premise that continuous real-time audio is somehow synonymous with idea-sharing or collaboration is just insane.
Sincere collaboration is respectful of each individual's time and planned work schedule, as well as individual preferences for quiet, privacy, etc. Sincere collaboration can be asynchronous, textual, visual, or auditory (or a mix), can be remote-friendly, etc.
What you describe as "forced information exchange between people" is appropriate maybe for a trading floor or mission control, but the attempt to stylize a bullpen of software engineers in the same way is disaster, and at best it is superficial collaboration.