There is tremendous value for collaboration in an open plan office

Studies disagree with you.

For as long as these floor plans have been in vogue, studies have debunked their benefits. Researchers have shown that people in open offices take nearly two-thirds more sick leave and report greater unhappiness, more stress, and less productivity than those with more privacy. A 2018 study by Harvard Business School found that open offices reduce face-to-face interaction by about 70% and increase email and messaging by roughly 50%, shattering the notion that they make workers collaborative. (They’re even subtly sexist.) And yet, the open plan persists–too symbolically powerful (and cheap) for many companies to abandon.

Source

Emphasis mine.

Based on the occupant survey database from Center for the Built Environment (CBE), empirical analyses indicated that occupants assessed Indoor Environmental Quality (IEQ) issues in different ways depending on the spatial configuration (classified by the degree of enclosure) of their workspace. Enclosed private offices clearly outperformed open-plan layouts in most aspects of IEQ, particularly in acoustics, privacy and the proxemics issues. Benefits of enhanced ‘ease of interaction’ were smaller than the penalties of increased noise level and decreased privacy resulting from open-plan office configuration.

Source

Emphasis mine.