Designing a full-sized game for a five-inch screen is all about setting...

https://eduardosnicechat.publishlane.com/posts/mobile-slots-in-browser-vs-app-what-s-the-difference-for-ui

Designing a full-sized game for a five-inch screen is all about setting priorities, not just shrinking everything down. You focus on touch-first controls that feel natural on small screens