Safari 26 brings a smoother app-like experience to many websites on your iPhone...

https://raymondsinterestingchat.quantlynix.com/posts/why-do-games-stress-test-mobile-browsers-more-than-other-apps

Safari 26 brings a smoother app-like experience to many websites on your iPhone and iPad. When you save a site to your Home Screen, it opens cleanly without the usual browser bars getting in the way