Starting this thread with C# stuff I use on Unity and the equivalent for #godotEngine C# I am learning on the way, maybe there is more suggestions or corrections to what I share:
Godot Basis.LookingAt instead of Unity Quaternion.LookRotation helpful to make an object/node Z axis point in the same direction as the vector is given.
No idea if is possible to get an Vector3 from the Basis to assign the value directly on Node3D.GlobalRotation