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 in a sequence of the claimed design; FIG. 2 is a second image thereof; FIG. 3 is a third image thereof; FIG. 4 is a fourth image thereof; FIG. 5 is a fifth image thereof; FIG. 6 is a sixth image thereof; FIG. 7 is a seventh image thereof; FIG. 8 is an eighth image thereof; FIG. 9 is a ninth image thereof; FIG. 10 is a tenth image thereof; FIG. 11 is an eleventh image thereof; and, FIG. 12 is a twelfth image thereof. The appearance of the graphical user interface sequentially transitions between the images shown in FIGS. 1 - 12 . The process or period in which one image transitions to another image forms no part of the claimed design. The hashed lines represent contrasts in appearance and form part of the claimed design. The peripheral broken lines indicate a display screen or portion thereof and form no part of the claimed design. All other broken lines show portions of the graphical user interface and form no part of the claimed design. All white space within broken line boundaries forms no part of the claimed design.