Safari 26 on iPhone and iPad brings websites to life with smoother app-like...

https://titussexcellentnews.nexorafield.com/posts/how-do-i-turn-off-open-as-web-app-in-safari

Safari 26 on iPhone and iPad brings websites to life with smoother app-like behavior. When you add a site to your Home Screen, it now opens without browser bars or tabs getting in the way