Display Screen or Portion Thereof with Set of Graphical User Interfaces

The sole FIGURE shows a display screen or portion thereof with set of graphical user interfaces showing our new design. The peripheral dashed broken lines illustrate a display screen or portion thereof, and form no part of the claimed design. The bracket in the FIGURE indicates a set; the bracket itself forms no part of the claimed design. The elements of the set are arranged relatively on the drawing sheet for convenience of illustration, and the placement of each element relative to another, or to the drawing sheet forms no part of the claimed design.