Typo 9 and workspaces

Hi there,

So I just updated to Typo9 version 9.5.7 and moving onto 9.5.10.
I know there used to be workspaces in the past, but I cant find if it still exists or how to activate it.

https://docs.typo3.org/c/typo3/cms-workspaces/master/en-us//Administration/CustomWorkspace/Index.html

I tried to follow the link above but its not very clear,

Thanks,