A mobile browser game can feel native because it’s designed to work smoothly in...

https://wiki-view.win/index.php/How_Do_I_Keep_Account_Sessions_Stable_on_Mobile_Browsers%3F

A mobile browser game can feel native because it’s designed to work smoothly in portrait mode, making it easy to play one-handed. It loads quickly thanks to smart caching, so you don’t have to wait