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

https://wiki-nest.win/index.php/Why_Do_I_Keep_Ending_Up_with_Hundreds_of_Icons_on_My_Home_Screen%3F

Safari 26 lets websites feel more like native apps on your iPhone and iPad. When you add a site to your Home Screen, it opens without browser bars or tabs, giving you a cleaner, full-screen view