Safari 26 on iPhone and iPad brings websites closer to app-like experiences....

https://highstylife.com/how-do-i-add-a-website-to-my-ipad-home-screen-and-make-it-feel-like-an-app/

Safari 26 on iPhone and iPad brings websites closer to app-like experiences. When you add a site to your Home Screen, it opens without the usual browser interface—no address bar or tabs