What's the most recommended internet browser for iPhone?

All iOS devices have a built-in web browser - called Safari. For many users, Safari is the preferred browser.

Should you wish to use something else, there are many to choose from in the Apple App Store. Of those available, popular alternative choices are Firefox or Chrome.

Firefox

https://apps.apple.com/app/firefox-private-safe-browser/id989804926

Google Chrome

https://apps.apple.com/app/google-chrome/id535886823

I believe that currently on IOS, Apple requires all Web browsers to use WebKit as the underlying engine. This means that there may be less real difference than there is with desktop Web browsers.

https://9to5mac.com/2023/02/07/new-iphone-browsers/