Google pays Apple $18B to $20B a year to keep its search in iPhone
theregister.com
theregister.com
More technical settings before first use doesn't sounds like the way Cupertino would go. Instead, I suspect they'd default to their own search engine (even if that's simply a wrapper), and maybe put the search-engine setting somewhere more prominent.
https://viewpoint.pwc.com/dt/us/en/pwc/accounting_guides/fin...
It’s not like if Bing defaults on iPhone then all of a sudden everyone will like Bing.