Way to disable the Visual Studio Code editor title bar

Install the custom CSS extension.

Now in your custom stylesheet:

.container > .title {
  display: none !important;
}

After, run the command "Enable custom css / js" (and restart).

You can use this setting to hide the title bar: "window.titleBarStyle": "custom". It can be accessed via menu File → Preferences → Settings → Window → Title Bar Style and set it to custom.