The cookie is already gone. The budgets have shifted. All the howlers screaming about Chrome’s road map for deprecation are akin to the last soldiers standing on the battlefield clinging to the flag of a fallen nation. In short, it’s over.
But we can’t measure the downfall of cookies by looking at the bidstream. There is still plenty of cookie-based buying going on. The old user-sync systems are still playing pixel ping-pong with cookie-enabled browsers.