Smartphones replaced separate entertainment devices by combining music, games,...

https://eduardosnicechat.publishlane.com/posts/why-do-mobile-apps-and-websites-both-need-to-remember-my-preferences

Smartphones replaced separate entertainment devices by combining music, games, videos, and browsing all in one pocket-friendly gadget. Mobile-first design needs to prioritize easy navigation and fast load times so users don’t get frustrated