On desktop and mobile, only the central "safe area" (roughly 1546 x 423 pixels) is visible. Using this resolution allows you to place your "King" title and central logos where they won't be cut off.
king of the world GIF by Weezer - Find & Share on GIPHY. Weezer. @weezer. 2048x1152 King of the World
Even at the minimum size, 2048x1152 provides enough clarity for high-definition displays, preventing the pixelation that can ruin a professional brand. The "King of the World" Aesthetic On desktop and mobile, only the central "safe