Display Screen or Portion Thereof with Graphical User Interface

FIG. 1 is a front view of a display screen or portion thereof with graphical user interface, showing a first image of the claimed design;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof; and,

FIG. 4 is a fourth image thereof.

The outermost dashed broken lines in FIGS. 1 - 4 show a display screen or portion thereof, and form no part of the claimed design. The other dashed broken lines in FIGS. 1 - 4 show text, graphics, and other elements that form no part of the claimed design.