Doesn't DV360 default to using IDs or cookies etc for targeting today? Those are user known identifiers. I am trying to wrap my head on how FloC would be used b

Doesn't DV360 default to using IDs or cookies etc for targeting today? Those are user known identifiers. I am trying to wrap my head on how FloC would be used by advertisers since the world is not all FloC enabled and cookies are still around.