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

https://josuesbestword.quillnesty.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 prioritizing what matters most. It’s not just about shrinking everything down. Touch-first controls need to be easy and natural. You have to decide if portrait or landscape mode works best