Yes, I’m using it like this:
const loader = new THREE.CubeTextureLoader();
const texture = loader
.load([
'../images/env/px.png',
'../images/env/nx.png',
'../images/env/py.png',
'../images/env/ny.png',
'../images/env/pz.png',
'../images/env/nz.png'
]);
scene.background = texture;