Safari 26 on iPhone and iPad makes many websites feel more like native apps....

https://connersinterestingblog.theglensecret.com/what-changed-on-mac-in-2023-with-safari-dock-web-apps

Safari 26 on iPhone and iPad makes many websites feel more like native apps. When you add a site to your Home Screen, it now opens in a focused, app-like view without the usual browser bars