Ive never had a NDE, but I have had DMT. Reality itself pales in comparison to how "real" and vivid the experience was.
Unlike other hallucinogens which apply a "filter" to the senses, DMT was like a wormhole to another dimension.
If that's what death is like, it makes me think consciousness would asymptotically approach anhiliation but live "forever" in whatever state a DMT trip is.