Display Screen or Portion Thereof with Graphical User Interface

FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with graphical user interface, showing our new design;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof; and,

FIG. 4 is a front view of a fourth embodiment thereof.

The outermost broken line rectangle in the drawings illustrates a display screen or portion thereof and forms no part of the claimed design. The remaining broken lines in the drawings show portions of the graphical user interface and form no part of the claimed design.