[Nextgrid]

AdGuard for iOS is compatible with uBlock-style filters and some of the EasyList ones will clear the cookie crap just as well as on desktop.

Most tracking nowadays is based on heuristics such as browser fingerprinting, IP addresses, etc in addition to cookies (as browsers started having built-in countermeasures against those) - clearing cookies is unlikely to be effective.

Don't bother interacting with the data processing consent forms - the majority of them aren't implemented properly and load malicious third-party scripts (at which point they already got your IP and browser fingerprint) and just rely on "asking nicely" the scripts not to track.

My recommendation is to always use private browsing mode - this will clear not just cookies but any form of local browser state that can be used for tracking. Coupled with an ad blocker it's about as good as you can make it.