Safari 26 changes how websites work on iPhone and iPad by making many of them...

https://www.kilobookmarks.win/with-safari-26-on-iphone-and-ipad-many-websites-now-feel-much-more-like-apps

Safari 26 changes how websites work on iPhone and iPad by making many of them feel like apps. When you add a site to your Home Screen, it now opens as a web app—no browser bars or tabs, just the site itself