(on PC) or Long-press (on Mobile) and select "Set as desktop background" or "Set as wallpaper".
If you are looking for high-resolution official alternatives from ASUS, the company provides several dedicated hubs: 720x1280 Asus Gold wallpaper by TheKingXboy - b2">
720x1280 pixels, which is a standard 9:16 aspect ratio optimized for many mobile smartphones. (on PC) or Long-press (on Mobile) and select