[SerializeField] private SceneLoaderAsset nextScene;

private async void Awake()
{
    await SceneLoader.LoadSceneAsync(nextScene);
    //or
    await SceneLoader.LoadSceneAsync(asset, new LoadSceneOptions()
        {
         SceneLoadMode = LoadSceneMode.Additive,
         UseIntermediate = false,
         ProgressChanged = ProgressChanged
        });
}

private static void ProgressChanged(float value)
{ 

}