I made a Razer wallpaper that is 1920x1080 but also fits nicely on a mobile device like a iPhone 12. I have added a example of it applied to a phone. :
Razer, gaming, HD phone wallpaper | Peakpx
110+ Razer Phone Wallpapers - Mobile Abyss
Razer Mobile Wallpapers on WallpaperDog
110+ Razer Phone Wallpapers - Mobile Abyss
Razer Logo Colorful Background 4K Ultra HD Mobile Wallpaper