Safari 26 lets websites feel more like apps on your iPhone and iPad. When you...

https://wiki-global.win/index.php/Why_Does_My_Web_App_Look_Fine_on_Desktop_but_Awkward_on_iPhone%3F

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