“Privacy Sandbox is that alternative. It’s complicated, but the easiest way to explain it is that it turns Chrome and Android into tracking tools.”
Google’s answer to the death of the third-party cookie is to move the tracking into the browser it owns. Asked why anyone should trust Google on privacy, product lead Victor Wong cited its “track record in innovation.” Asked about the W3C saying Privacy Sandbox is not private enough, he compared the W3C to the United Nations. Safari and Firefox already block these cookies. Only Chrome needed a replacement.