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; and, FIG. 2 is a second image thereof. The outermost dashed broken lines show a display screen or portion thereof, and form no part of the claimed design. The other dashed broken lines show text, graphics, and other elements of the graphical user interface that form no part of the claimed design. The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1 - 2 . The process or period in which one image transitions to another forms no part of the claimed design.