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

https://wiki-cable.win/index.php/How_to_Keep_Controls_Reachable_on_a_Compact_iPhone_Screen

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