Which is standard? …Too bad it isn’t in the standard GIMP yet ?… I think you are a Windows user.
For Gimp 2.10 (Windows or linux) to enable the Playground options start Gimp with the switch --show-playground like the screenshot and go into Edit → Preferences.
Enable and restart Gimp and they are now in the toolbox
Still experimental, somewhat flakey, especially on large images.