It means: Notebookcheck screwed up this time - you should make battery tests with and without VRR. Big disappointment.
Looked promising but the XPS 14 really needs to be 1KG max and just dump the stupid glass palm rest idea.
I'm looking on Dell pro 3 annoucements and it looks it will have similar VRR IPS screen, battery 70Wh, normal touchpad and keyboard = can be better than xps14.
We will see :)