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

https://deansinspiringperspective.hexaforgey.com/posts/what-does-responsive-web-design-actually-change-in-a-game-ui

Designing a full-sized game for a five-inch screen is all about smart priorities, not just making everything smaller. It means creating touch-first controls that feel natural in your hand