How can I swap the up/down function on my iPad volume buttons?

Dynamic volume controls were introduced with release of iPadOS 15.4 onwards. The “logic” behind dynamic volume controls is such that regardless of the screen orientation, the relative function remains constant - as follows:

• When the physical buttons are positioned on a vertical edge of the iPad, the uppermost button will always increase the volume. Conversely, lower button will decrease the volume.

• When the physical buttons are positioned on a horizontal edge of then iPad, the button on the right will increase the volume - while the button on the left will decrease the volume.

For reasons known only to Apple, the ability to disable this feature is not available for any new models of iPad and iPad Pro that have since been launched - these models including:

• iPad Air5
• iPad mini6
• fourth generation iPad Pro 11” and later
• sixth generation iPad Pro 12.9” and later
• iPad10 and later

This is documented within this updated Apple Support document:

Use the Home, side, and other buttons on your iPad - Apple Support

Apple invite submission of constructive comments and feature requests via its Product Feedback pages. If you would like to see the ability to disable dynamic volume control functions for your iPad, this would be the most appropriate channel through which to make your voice heard:

Feedback - iPad - Apple

Follow the guide here (scroll down to the "Use Volume Button" section) to see if what is outlined will work for you (I'm thinking not).

The button functions can either stay fixed or follow the rotation of the iPad.

There are NO other settings that will let you modify how the volume controls work (like manually swapping the up button with the down button).