I'm testing the different auras on a singelplayer world and the blatant aura target mode none seems to be the same, visually as the old legit aura. Tho I'm not sure about bypasses and such on hypixel.
What you are seeing is the replay system watching you, this is the same for all player on hypixel. If you for example get a lot of reports a staff can "replay" you to se what you have done and if you have been cheating even if you log off
It would be nice if the vape developers could add a name revealer for hypixel duels. It should be possible to do and to safely use since I've seen it on so many other clients.