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

https://wiki-room.win/index.php/What_Is_the_Difference_Between_a_PWA_and_Just_a_Site_Added_to_Home_Screen%3F

Safari 26 brings a smoother app-like feel to many websites on iPhone and iPad. When you add a site to your Home Screen, it now opens without the usual browser chrome, making it look and act more like a native app