> The Chrome sandbox efforts have been going on for 3-4 years with no progress. There has been progress: many APIs have been implemented in Chrome, with severa

> The Chrome sandbox efforts have been going on for 3-4 years with no progress. There has been progress: many APIs have been implemented in Chrome, with several origin trials for testing them and iterating. Ex: FLoC started an origin trial, people raised issues, Chrome proposed a replacement (Topics) which looks like it will be in origin trials soon (https://privacysandbox.com/open-web/#the-privacy-sandbox-timeline https://privacysandbox.com/open-web/#the-privacy-sandbox-tim...). (Disclosure: I work on ads at Google, speaking only for myself)