A mobile browser game can feel just like a native app by supporting portrait...

https://blogfreely.net/samuel-wang09/how-do-i-handle-camera-cut-outs-and-notches-in-game-hud-design

A mobile browser game can feel just like a native app by supporting portrait mode, making it easy to play with one hand. It loads quickly thanks to caching, so you don’t have to wait every time