iOS can now run uBlock Origin! Before that, there was Wipr/wipr 2 which are still excellent, and the Firefox Focus browser which has some stellar adblocking and wipes all browsing data, cookies, cache, everything every time you exit the browser (or click the button to do it.)
Permissions in iOS have historically been more locked down for apps as well, giving users much more control over what apps can access. This changed a couple years back and now Android gives users more control over what apps can access than it used to.
I remember trying to browse forums before iOS/android were a thing and yah, it was a nightmare. Shoot, when iPhones came out, they couldn’t even copy and paste! I had the first Android phone that was released when it came out, the Dream, and it was revolutionary. I stopped using all Google products and services a long while ago, so iOS was pretty fleshed out by the time I got my first iPhone.
Now, full desktop sites work pretty well on mobile devices—I often prefer them to mobile versions of sites. I’m lucky to have really good eyesight though, so I like my text very small and condensed and all over the screen for maximum info without scrolling.