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

https://www.paste-bookmarks.win/safari-26-brings-a-smoother-app-like-feel-to-many-websites-on-your-iphone-and

Safari 26 on iPhone and iPad brings websites closer to app-like experiences. When you add a site to your Home Screen, it can now open in a cleaner, full-screen view without browser bars