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

https://dibz.me/blog/how-do-aspect-ratios-affect-game-ui-on-phones-1269

Designing a full-sized game for a five-inch screen is all about prioritizing what matters most. Instead of just shrinking everything, you focus on touch-first controls that feel natural in hands. Portrait mode often works better than landscape here