Select the Object with the Gradient: Click on the object that has the gradient style you want to copy.
Command + Option + Cto copy the style of the selected object. This keyboard shortcut copies all the style properties, including gradients.
Select the Object to Apply the Gradient: Click on the object where you want to apply the copied gradient style.
Command + Option + Vto paste the copied style onto the selected object. This action applies the copied gradient fill.