I don't know if it will be useful to you but a long time ago I created a "guide" to Godot. I know that the vast majority of things will not be useful to you, possibly because it doesn't teach anything but it says what each thing is about more or less. If you are interested, I wouldn't have a problem with it. I'll send you the file with the information, although I would have to translate it into English, but by the way, are they going to translate the game?. I know they have problems with the weather and changing the engine but it was more than anything a doubt although I don't think so.