The Folding Stuff from George James Software is a simple extension that adds options to the context menu of documents open in Visual Studio Code. This makes it easier to use the standard facilities for folding and unfolding code blocks.
Extra entries on the context menu of any document you're working on.
/* Some stuff that explains what's going on in the code, or perhaps containing some code that's temporarily disabled */
There is only one requirement - realistic expectations. The Folding Stuff doesn't magically improve VS Code's abilities to fold and unfold code blocks. It merely adds a context menu submenu that let you access the existing (un)folding commands.