Safari 26 on iPhone and iPad makes many websites feel more like native apps....

https://www.cool-bookmarks.win/safari-26-on-iphone-and-ipad-helps-many-websites-feel-just-like-apps-when-you

Safari 26 on iPhone and iPad makes many websites feel more like native apps. When you add a site to your Home Screen, it now opens in a focused, app-like view without the usual browser bars