"At Vivaldi, we are committed to protecting our users from online trackers, and we would not want to enable any kind of user behavioural profiling. The FLoC experiment does not work in Vivaldi, because it relies on several hidden preferences being set, and we do not enable these options in Vivaldi. Our future plan is to prevent the Floc component from functioning, no matter which way it is implemented."
>document.interestCohort()
>VM131:1 Uncaught TypeError: document.interestCohort is not a function at <anonymous>:1:10