Create a Games app-folder in GNOME
by rusty-snake
Create the folder:
gsettings set org.gnome.desktop.app-folders.folder:/org/gnome/desktop/app-folders/folders/Game/ name "Game.directory"
gsettings set org.gnome.desktop.app-folders.folder:/org/gnome/desktop/app-folders/folders/Game/ translate true
gsettings set org.gnome.desktop.app-folders.folder:/org/gnome/desktop/app-folders/folders/Game/ categories "['Game']"
Then add 'Game' to org.gnome.desktop.app-folders folder-children.