A well-built mobile browser game can feel just like a native app by supporting...

https://astro-wiki.win/index.php/What_Are_the_Biggest_Mistakes_When_Porting_a_Desktop_Browser_Game_to_Mobile%3F

A well-built mobile browser game can feel just like a native app by supporting portrait mode for easy one-handed play, loading quickly thanks to smart caching, and offering touch-friendly controls that respond smoothly