> Instead of fingerprinting out of millions of browser users a company now just has to have a rather small set (Floc) + old school finger printing to 100% uniqu

> Instead of fingerprinting out of millions of browser users a company now just has to have a rather small set (Floc) + old school finger printing to 100% uniquely identify a user. A company can already fingerprint you with 100% certainty with a third party cookie. The idea is to replace those with FLoC. It's at worst a lateral move, and usually an improvement.