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

https://wiki-mixer.win/index.php/Is_MrQ_Actually_Built_to_Run_in_Safari_and_Other_Modern_Browsers%3F

Safari 26 brings a smoother, app-like feel to many websites on iPhone and iPad. When you add a site to your Home Screen, it now opens without the browser’s usual bars and controls—just like a real app