I can't run real Firefox.
I can't route all calls through Google Voice.
I can't run CarPlay without a head unit.
I can't open all map links in my preferred maps app.
I can't create restricted accounts for my kids.
It's essentially unusable as a "smart" phone.
Any claims about privacy fall apart after investigation. Google will still get my location on iOS if I use Google Search, exactly as it does on Android.