Safari 26 brings a big improvement to how websites work on iPhone and iPad by...

https://ericksexcellentblog.image-perth.org/how-do-i-add-a-website-to-my-iphone-home-screen-the-right-way

Safari 26 brings a big improvement to how websites work on iPhone and iPad by letting you open them right from the Home Screen like real apps. When you add a site to your Home Screen, Safari now gives you the option to “Open as Web App