Software: Blender 2.90
OBJ with LODs
FBX with LODs

• Objects: 18
• Vertices: 26,341
• Edges: 52,119
• Faces: 25,723
• Triangles: 50,945

Note:

• Support Edge loops are by the Bevel modifiers. So if you want to export a low poly model you should Apply the Bevel modifiers to subdivide it later.
• Subdivisions may look weird on other software if you didn't have a Shrinkwrap Modifier.
• Guide Meshes are for the Shrinkwrap Modifier.
• The Clip Bands can be adjusted to a Normal Position by ShapeKeys.
• Everything is organized in Collections.
• Lighting and the Camera are in the Studio Collection.
• The Switch Light can be activated in the Shader Node Editor.
• There is a PopFilter object if you need it when there is wind.