VSCode: settings.json file is not recognizing a terminal.integrated setting - visual-studio-code

Question

Why is this entry not recognized by VSCode? I have a very slow terminal output that I am hoping this will help fix:
"terminal.integrated.rendererType": "experimentalWebgl"
The above command is known to exist, here: https://github.com/Microsoft/vscode-docs/blob/master/docs/editor/integrated-terminal.md
Here is my settings.json file:
{
"atomKeymap.promptV3Features": true,
"editor.formatOnPaste": true,
"editor.multiCursorModifier": "ctrlCmd",
"python.pythonPath": "C:\\Users\\Andrew\\Anaconda3",
"workbench.colorTheme": "Visual Studio Dark",
"terminal.integrated.rendererType": "experimentalWebgl", # grey'd out assuming its not a real command
"workbench.iconTheme": "Monokai Pro Icons",
"workbench.editorAssociations": {
"*.ipynb": "jupyter-notebook"
},
"python.defaultInterpreterPath": "C:\\Users\\Andrew\\Anaconda3",
"terminal.integrated.defaultProfile.windows": "Command Prompt",
"notebook.cellToolbarLocation": {
"default": "right",
"jupyter-notebook": "left"
},
"debug.javascript.pickAndAttachOptions": {
},
"workbench.colorCustomizations": {
}
}

Answer 1

The referenced markdown documentation file is not up to date (note that it's on branch master, while current development happens on the main branch). The WebGL renderer has been made the default in v1.55 (March 2021):
As part of this work we also added some fallback logic. When "terminal.integrated.rendererType": "auto", the following happens:
The WebGL renderer will try to start up.
If it fails, for example due to lack of OS/browser support:
The canvas renderer will be enabled and the time it takes to render a frame will start to be measured.
If the first 20 frames are rendering slowly, for example if there are hardware issues or GPU rendering is disabled:
The DOM renderer will be enabled.
In the next release, we plan on removing the rendererType setting all together in favor of a much more understandable "terminal.integrated.gpuAcceleration": "auto" | "on" | "off".
See the current documentation on this for further reference.