It's a low poly model. You can use any subdivision to make it more smooth.
Here all native formats are available for any 3D package
Autodesk 3D Studio Max, Autodesk Maya, Cinema 4D, Keyshot, FBX, OBJ, glb, gltf
No Photoshop was used after post-processing the image. Object position in the centre (all format )
Anything else you need knock me.