A mobile browser game can feel native because it supports portrait mode, making...

https://future-wiki.win/index.php/Why_Switching_from_WiFi_to_Cellular_Breaks_My_Browser_Game_Session%E2%80%94and_How_to_Fix_It

A mobile browser game can feel native because it supports portrait mode, making it easy to play one-handed. It loads quickly thanks to smart caching, so you’re not stuck waiting