I think I get what you are saying there.
Let's define full RT lighting: That means each of the following are using hardware RT
- Direct lighting : shadows, reflections and refractions
- Indirect lighting: GI + AO
Each one of these features can be implemented piece-meal. A full RT lighting solution would be using all of them at once. Most games will only pick parts of these to implement saving on bandwidth.
What is the difference here between "Lumen" and "Ray traced"?