If you’re deep into UI customization then iOS has never been and will never be the way. For me I’ve never cared that much about looks outside having dark mode, a clean interface and a wallpaper.
Some of the other things are possible though, like downloading app files from the store (they’re IPA in Apple terms). Sideloading apps is also a thing, people have been using yt Vanced on iOS for years.
There’s all kinds on browser extensions in the store, but only for Safari. There’s almost no point in using any other browser in iOS since they all practically are Safari under the hood.
I don’t know this guy, don’t live in the US or am familiar with any wrestling stuff, why is he being shat on?