Editor not saving

I even manually added

    "key": "ctrl+s",
    "command": "editor.action.files.save",
    "when": "editorTextFocus"

and kept saving, yet I came back to my work rerolled back HOURS back?

I looked over at my history tab:

Every time you submit your code, it is saved in the History. Check out the different versions of your code in the list below:

C++ 8
About 5 hours ago
About 5 hours ago
About 6 hours ago
About 8 hours ago
About 8 hours ago

like what is this?? where are my last 5 hours of work?? is this a prank?

Found this: Coding Games and Programming Challenges to Code Better
Ok I’m using external save now, don’t trust the website doesn’t save your work.

You just have to run your code once in order to save. No configuration is required.