Welcome to the forums @Beginner_LH!
We are a primarily English forum, as that's what most of our users use, and I do not speak German, so I have to translate the text so I can understand it. I used Google translate, the results of which I have posted below, and am responding as best I can based on the result.
Translation from Google translate:
Hello everybody,
i need your help I downloaded and imported Biomes from GitHub, unfortunately I can't find them anywhere despite the successful import. These are "wojtekpil / Godot-Biomes".
It would be great if someone could help me.
Many Greetings!
And
I would suggest contacting the creator of the Biomes on GitHub and see if they can help you get setup. If you downloaded the stuff from GitHub, it should be in your downloads folder. If you imported it through the Godot Asset library, I am not sure where it would be located, but its probably in a sub-folder in your project.