The "system wide adblock" on iOS has the same restrictions as this new Chrome extension system. It does not support the extension API that uBlock Origin uses.

https://developer.apple.com/library/archive/documentation/Ge...

Not versed in the technical details but 1Blocker X for iOS Safari has prevented practically 99.9% of all ads I used to see in an unmodded Android Chrome before. I've only seen 2 websites have some form of ads in the last 14 months.

Then Chromium's Manifest v3 is for you. Most of the other people commenting here want something more powerful.

>I've only seen 2 websites have some form of ads in the last 14 months.

It doesn't work on reddit, which makes up a lot of page visits for most people. Also, they can't defuse/bypass anti-adblock scripts.

there are dns rule-based adblockers for ios