This extension is for the Gnome display manager works best in Xorg is the way to go for now, although the mouse integration is a little buggy.
The extension is installed by downloading the files via Mioduszewski's Github repository, copying them to the correct directory and then using the gnome-extensions application to enable it.
The extension allows you to do anything available on the browser version without many issues. It is just a little handier, particularly those who are using it to fast track basic code creation.