Integrate Proprietary Cohorts Concept

[brodrigu]

Would you consider incorporating the concepts laid our in the Proprietary Cohorts proposal to FLoC to allow first parties to choose how cohorts are generated on their sites?

I believe this proposal provides most if not all of the benefits of FLoC while giving first parties some control and choice. It also has the added benefit of providing consistent cross-browser functionality as cohort generation would not differ from browser to browser.