Safari 26 on iPhone and iPad helps websites act more like apps by improving...

https://www.play-bookmarks.win/safari-26-brings-a-smoother-app-like-feel-to-many-websites-on-your-iphone-and

Safari 26 on iPhone and iPad helps websites act more like apps by improving Home Screen behavior. When you add a site to your Home Screen, it now opens in a clean, app-like window without the browser’s address bar