Widget Container / Widget Folder
Install this widget (widget-container) on the desktop, the widget occupies an area of 1x1 and looks like a folder.
Open the widget (the folder) and install within it other widgets up to 3 pages of 4x4 spaces.
In addition to widgets, you can add shortcuts to other programs (see App Shortcut from the list of widgets)
Repeat creating more folders (widgets-container)
Name each folder with a different name to distinguish them.
Thus the desktop space is multiplied, there is no limit to the number of widgets that can be installed.