Hi @uau7j7woi7,
Some updates from Tobias Bernard, a GNOME designer hired by Purism to work on GNOME Mobile’s UX. In his GUADEC 2018 talk he showed:
You can also find the video of Tobias’ talk at GUADEC 2018
There is no detail about widget, and there is much to bet it is not likely to happen soon after the phone is released.