We should make a darkUI along the lines of prohibitive cookie policy modals that detect Chrome, and forces the FLoC in user's faces. It'll get ignored and be as useful as the cookie policy windows, but it'll be funny. Maybe add to the window "Don't like this message? Try Firefox instead!"
“Cookie policy modals” is bad naming: they‘re specifically there to get consent to track, regardless of the method you use to track in the first place.