Safari 26 brings a fresh feel to using websites on your iPhone and iPad by...

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

Safari 26 brings a fresh feel to using websites on your iPhone and iPad by making them behave more like apps. When you add a site to your Home Screen, it now opens with minimal browser interface, letting the site take center stage