Video Ram Debugger (Forward+) lists each of my viewports twice. Why?

Godot Version

4.3

Question

It’s great that Godot 4.3 fixed the Video RAM debugger for optimization purposes. I have noticed that when I go to check my Video RAM usage in the debugger on Forward+, it shows the render of each of my in-game viewports… twice.

I’m assuming this is by design? If so, could someone explain the technical reason for this? I don’t see any of the Render Targets listed when I’m in Compatibility Mode.

For the record, this occurs in every Godot Project (i’m primarily working in 3d, so I can’t compare 2d). The game’s Root Node Viewport shows up twice as well.