How to get nested object world position from imported GLB model?

I’m sorry if my question is a duplication

I’m trying to get a mesh world position in the scene.
No transformation, no position updates. I just import a .glb file and try to get the world position of some random mesh.

const obj = scene.getObjectByName('test_mesh');
const vector = new THREE.Vector3();
obj.localToWorld(vector); // 0, 0, 0

I need some help