Yes, listening to German spoken by native speakers is one of the best ways to learn the language. The catch is that you need to reach intermediate level before you will be able to make much sense of native speakers speaking for other native speakers.
Can you learn German by listening?
Despite being challenging, listening skills are absolutely vital to learning a new language. Secondly, strong listening skills help improve your German speaking abilities. ... You'll also learn certain colloquialisms, which will help you sound more fluent and really impress some native speakers.