‘Google abandons FLoC, introduces Topics API to replace tracking cookies’
Your browser will store these topics for three weeks before deleting them. Google says that these categories “are selected entirely on your device” and don’t involve “any external servers, including Google servers.” When you visit a website, Topics will show the site and its advertising partners just three of your interests, consisting of “one topic from each of the past three weeks.”
There are probably a lot of nuances to learn about here. But Topics sounds way more private for Chrome users than the cookies they have now and better than FLoC. But will it only be applicable to Chrome users?