What is the purpose of the Electronic Differential Lock (EDL) in the Audi 80?

I recently purchased a used Audi 80 and noticed it has an Electronic Differential Lock (EDL). I'm not sure what this feature is for and how it works. Can someone explain its purpose?

The Electronic Differential Lock (EDL) in the Audi 80 is designed to improve traction and stability while driving. It works by automatically applying braking force to the wheels that are losing grip, allowing power to shift to the wheels with better traction. This helps prevent slipping and ensures better handling on different road conditions.