third party cookies track you across the web, on every site you visit, so long as the third party is in common. first party cookies are categorically different.

third party cookies track you across the web, on every site you visit, so long as the third party is in common. first party cookies are categorically different. I don't think the proposal is even the removal of third party cookies per se, rather that they be partitioned into silos based on the first party site. So there's no need for a workaround using first party cookies, but the capabilities exposed by cookies become categorically different.