Safari 26 helps websites feel more like native apps on your iPhone or iPad....

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

Safari 26 helps websites feel more like native apps on your iPhone or iPad. When you add a site to your Home Screen, it can open in a standalone window without browser bars getting in the way