In terms of lack of adblocking and customization in a stock browser, Chrome on Android is far more egregious. It doesn’t support any kind of extension, adblocking or otherwise. It boggles my mind that despite this, it’s the dominant browser on Android instead of Firefox (which supports uBlock Origin, the gold standard for blocking).

By comparison, Safari for iOS/iPadOS supports both content blocking extensions and “full fat” browser extensions, the latter with a caveat of maximum memory usage (which makes sense on a mobile device).