> one'll suggest that you download the manual through Apple Books.
That reminds me of the 1990s scenario of having to know and understand FTP in order to install a web browser.
Wouldn't it be more sensible to have it preloaded on the phone? I presume the OS is already regionalised, so they could include the appropriate manual.
More likely to be found is that in the Tips app that a newly set-up iPhone tries to point you to, once you've gone through a few tips one'll suggest that you download the manual through Apple Books.