The ornamental design for a displayscreen or portion thereof with graphical interface, as shown and described.
FIG. 1 is a front view of the display screen or portion thereof with graphical interface according to a first embodiment of our claimed design; and,
FIG. 2 is a front view of the display screen or portion thereof with graphical interface according to a second embodiment of our claimed design.
The dot-dot-dash lines and the lightened areas within those lines show portions of the graphical interface that do not form a part of the claimed design. The dot-dash lines depicting the display screen also form no part of the claimed design. The figures are shown in grayscale and color forms no part of the claimed design.