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

https://dibz.me/blog/what-is-the-difference-between-a-pwa-and-just-a-site-added-to-home-screen-1273

Safari 26 brings a smoother app-like feel to many websites on your iPhone and iPad. When you add a site to your Home Screen, it can now open without the usual browser bars, giving you more screen space and less distraction