Hi, I’ve seen a lot of request of people asking how to do it without using many addons like Plater, Weakauras etc.
So here is a very easy way to do it.
Download AdvancedInterfaceOptions addon.
Press “Esc”, go to "Options, “Addons” open “AdvancedInterfaceOptions”, open “CVar Browser”, type into search “nameplateselfbottominset” and set the value to “0.55”