Safari 26 helps many websites feel more like real apps on your iPhone and iPad....

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

Safari 26 helps many websites feel more like real apps on your iPhone and iPad. When you add a site to your Home Screen, it can open in a special full-screen mode without the usual browser bars getting in the way