Safari 26 brings websites closer to app-like experiences on iPhone and iPad....

https://www.bookmark-suggest.win/safari-26-changes-how-websites-work-on-iphone-and-ipad-by-making-them-feel-more

Safari 26 brings websites closer to app-like experiences on iPhone and iPad. When you add a site to your Home Screen, it feels more like a native app without browser bars getting in the way