If you want to design your own custom footer in AMP then you need to follow below steps.
Step 1 – Navigate to the Appearance -> Widgets -> AMP Footer Here you can see the AMP footer widgets.
Step 2 – Simply drag and drop the widgets which you want from the left side into the “AMP Footer” area like below the screenshot.

The Output of the AMP Footer in AMP

If you want to customize the Footer background color, width, height, padding, margin, etc then follow this tutorial.
That’s it for this tutorial!
We hope it helped you. If you have any feedback or questions, then please share them in the comments section below.