Safari 26 on iPhone and iPad makes many websites feel just like apps by...

https://hotel-wiki.win/index.php/Why_Do_Some_Home_Screen_Website_Icons_Open_in_a_Tab_and_Others_Do_Not%3F

Safari 26 on iPhone and iPad makes many websites feel just like apps by improving how they behave when saved to your Home Screen. When you add a site, it can now open as a standalone web app without the usual browser bars or tabs getting in the way