Unexplained Blue Area on Visual Profiler in Compatibility Renderer

### Tested versions

- Reproducible in: 4.3, 4.0

### System information

Godot v4.0.4.stable - Windows 10.0.22631 - Vulkan (Compatibility) - NVIDIA GeForce RTX 3050 Laptop GPU (NVIDIA; 32.0.15.6109) - 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz (16 Threads)

### Issue description

In the Visual Profiler there is an unexplained blue Area, which doesn't appear in the in the left overview. It seems like it would be accurate, if it weren't there.
I would expect it to either be removed, in case its a bug, or added in the left overview in case it does measure something worthwhile. In that case it would also need to be added to Mobile and Forward+ Renderers.

### Steps to reproduce

A new project with any 2D or 3D Scene in Compatibility Renderer. Start the Visual Profiler and it should be there

### Minimal reproduction project (MRP)

[new-game-project.zip](https://github.com/user-attachments/files/17267335/new-game-project.zip)

Start with the Visual Profiler implementation for the Compatibility renderer and compare the blue area with the metrics shown in the left overview. Reproduce it in a new 2D or 3D project using the Compatibility renderer, then determine whether the area represents a real measurement; done means it is removed or consistently represented across the renderer views.

Written by the indexing model from the issue text.