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 Logo Vortex Colorful Background 4K Wallpaper iPhone HD Phone #4910f
Download Razer wallpapers, virtual backgrounds, and videos | Razer United States
3d Graffiti - Razer wallpaper 1920x1080 | 3d graffiti design… | Flickr
4K Razer Dark Background Wallpaper iPhone HD Phone #2410g