VSLAM and Nvblox guide for mapping and navigation

Need few more clarifications on top of the above !!

  1. It is mentioned in the VSLAM documentation that global localization is not supported, that means we cannot load the pose graphs and localize in the map ?

  2. It is mentioned that loop closure is supported with nvblox in here : Using ISAAC ROS vSLAM questions on localization mode, pose graph saving offline and 3d reconstruction with nvblox and loop closure is not supported by nvblox in here : Does nvblox support loop closure?, so which is true ?