To be fair, the settings editor in VSCode shows all the settings possible in a split window with user settings, with neat categories and auto-completion. It's almost like a GUI setting dialog noways and makes it way easier to see what you have changed.

This: https://i.imgur.com/oPYr6Ch.png isn't discoverable?

The comments tell you in detail how each setting works (as you can see, they are even translated), you can search for a specific setting on the top, and it's categorized as well; defaults on the left, your own on the right.

No, wading through a huge text file is not discoverable.

How would you suggest that many settings be implemented in a GUI? It'd have to break them up into groups, and it appears that's exactly what VS Code is doing.

There are different ways to discover stuff. Powershell itself clearly proves that it can be done on system level without any GUI whatsoever.

We had the "ease of use" in GUI paradigm for decades and it didn't hold. Why don't you give it a chance as a text ?

Why do you want to limit yourself to only one way of doing things?