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 4K wallpapers for your desktop or mobile screen free and easy to download
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Razer Chroma - Wallpaper Engine | The world's largest lighting ecosystem for gaming devices is now on Wallpaper Engine. Bring your desktop to life with Razer Chroma RGB and watch as your...
41 Razer Wallpapers & Backgrounds For FREE | Wallpapers.com
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Razer 4K Wallpaper, HD Artist 4K Wallpapers, Images, Photos and Background - Wallpapers Den