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 display screen or portion thereof with graphical user interface, showing our new design; and,
FIG. 2 is a front view of the display screen or portion thereof with graphical user interface of FIG. 1, in which a mobile terminal in broken lines is provided to illustrate an example environment.
The broken line showing of the display screen and graphical user interface elements are included for the purpose of illustrating portions of the article and form no part of the claimed design.
The Samsung trademark in the center portion of FIG. 2 is a registered trademark and the property of Samsung Electronics Co., Ltd. Trademarks are the property of their respective owners.