My Godot prototype's environment, reflections and light setup (in-editor settings)
I suggest changing the SSAO colour to black instead of white as was shown in this video.
Spatial materials require proper tweaking to get the nice metallic visuals. I am using a baked ambient occlusion texture for my jet as well.
My game origin shifts the world so the reflection and GIprobe stay in the same position and remain unmoved. Just that the world moves around the player and the probes instead.
Used water shader: github.com/Chrisknyfe/godot-scraps
Godot 3.2 beta was used for this video.