What is the function of the Audi 80's rev limiter?

I recently noticed that my Audi 80 has a rev limiter but I'm not sure what it's used for. Can someone explain its purpose and how it works?

The rev limiter serves as a safety mechanism to prevent damage to your car's engine. It sets a maximum RPM limit and cuts off fuel supply to the engine if that limit is reached.

In addition to protecting the engine, the rev limiter can also improve performance. By limiting the RPM, it ensures that the engine is not overworked, allowing it to run more efficiently.