Safari 26 brings websites on iPhone and iPad closer to native apps by improving...

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

Safari 26 brings websites on iPhone and iPad closer to native apps by improving how they behave when added to your Home Screen. When you use the new 'Open as Web App' option, sites launch without the usual browser bars and controls