Most of the web privacy settings are specific to Safari, not the Webkit browser engine.

Also an app can access and send more data than a browser window. Anything the webview can block can just get transmitted by the app itself separately. So there's no reason to block 3rd-party browser engines as the GP post says.

safari is enough and has enough bugs to be a totally good vector for malware

The real security issue is: if a bug in Safari is found (it happens quite often) users cannot use another browser in the meantime.

> has enough bugs to be a totally good vector for malware

Not for most people.

It's the main vector for malware on Apple phones (and mac laptops)

Most malware is installed consensually, not as the result of bugs.

So the only solution is to remove the computation from computation devices.