Safari 26 brings a smoother, more app-like feel to websites on iPhone and iPad....

https://romeo-wiki.win/index.php/Is_Browser_Gaming_on_iPhone_Finally_Good_Enough_Without_Plugins%3F

Safari 26 brings a smoother, more app-like feel to websites on iPhone and iPad. When you add a site to your Home Screen, it now launches more like a native app without the usual browser bars cluttering the screen