This specific 3D model, "Park Bench Low-poly 3D model 5", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
OBJ (OBJ, filesize: 171 MB), BLEND (Blender, filesize: 101 MB), GLTF (glTF, filesize: 97.3 MB), PLY (Ply, filesize: 58.8 MB), FBX (Autodesk FBX, filesize: 58.5 MB)