A well-built mobile browser game feels native because it adapts smoothly to...

https://smoothdecorator.com/how-do-i-keep-the-same-features-on-mobile-without-cluttering-the-screen/

A well-built mobile browser game feels native because it adapts smoothly to portrait mode, making it easy to play with one hand. It loads quickly thanks to smart caching, so you don’t have to wait long each time you open it