Turn your phone sideways on a grouped list and it becomes a Kanban board, with one column for each group.
Needs the Landscape Kanban feature (in the Mobile group in More > Features).
Using it
Open a list and group it: ⋮ > Group by (for example by Priority, Label or Morning / afternoon / evening).
Turn your phone sideways.
Drag cards between columns. Moving a card changes its group. For example, moving a task to the "High" column gives it high priority.
Turn your phone upright to go back to the normal list.
Screenshot to add: A grouped list shown as a Kanban board in landscape
Week View and the Habits table also use the extra room when you turn your phone sideways.