Which version of godot are you using? I have no problem when I download it.
Some link to get started with godot:
Text:
- https://docs.godotengine.org/en/stable/getting_started/introduction/index.html
- https://www.gdquest.com/tutorial/godot/learning-paths/beginner/
Video:
The official documentation contains a lot of useful resources for beginners, and there are videos on youtube to learn the basics.