Most cookies in those popups are third-party cookies, at least for websites with giant lists of third party cookies that require Consent-O-Matic to properly disable. Website relying on first-party cookies are usually rather unobtrusive,

They’re for cookies that are set in the first party context i.e. a third-party script sets a cookie on the first part origin

Safari stopped supporting third-party origins setting cookies on themselves many years ago

I meant that most sites have first-party cookies (whether or not they have third-party cookies) and you'll still need the banner for those.