Safari 26 on iPhone and iPad changes how many websites feel by letting you use...

https://ricardosinterestingwords.swiftnestly.com/posts/why-do-some-home-screen-website-icons-open-in-a-tab-and-others-do-not

Safari 26 on iPhone and iPad changes how many websites feel by letting you use them more like apps. When you add a site to your Home Screen, it opens without the usual browser controls