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

https://super-wiki.win/index.php/Chrome_vs_Safari_for_HTML5_Games_%E2%80%93_What_Differences_Matter_Most

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