What is a super fast way to apply the animation from one layer to another?

The choice of copying and pasting keyframes is indeed a super fast way to apply the animation from one layer to another in Adobe After Effects. This method allows you to quickly transfer specific motion, effects, or transformations from one layer's keyframes directly onto another layer. By selecting the keyframes you wish to copy, you can use simple keyboard shortcuts (Ctrl+C to copy and Ctrl+V to paste) to transfer the animation, maintaining the timing and spacing exactly as it was on the original layer.

This approach is particularly useful when working with similar layers that require consistent animation, as it avoids the need to recreate animations from scratch. The process is efficient and allows for rapid adjustments, enabling a smoother workflow when fine-tuning animations across multiple layers.