The ornamental design for a displayscreen or portion thereof with graphical user interface, as shown and described.
FIG. 1 is a front view of a first image of a display screen or portion thereof with graphical user interface;
FIG. 2 is a front view of a second image of a display screen or portion thereof with graphical user interface; and,
FIG. 3 is a front view of a third image of a display screen or portion thereof with graphical user interface.
The broken line showing of portions of the display screen or portion thereof with graphical user interface is included for the purpose of illustrating portions of the article and forms no part of the claimed design.
The appearance of the display screen changes from one of the FIGs. to another one of the FIGs. Any process or period in which the display screen or portion thereof transitions from one of the FIGS. to another one of the FIGs. form no part of the claimed design, and the claimed design does not include a physical transformation of size and shape of the display screen.