The ornamental design for a displayscreen or portion thereof with graphical user interface, as shown and described.
FIG. 1 is a perspective view of a display screen or portion thereof with graphical user interface showing our new design in a first state;
FIG. 2 is a front view thereof in a first state; and,
FIG. 3 is a front view thereof in a second state.
The appearance of the graphical user interface transitions between the images shown in FIGS. 2 and 3. The process or period in which one image transitions to another forms no part of the claimed design.
The broken line showing of a display screen or portion thereof is for the purpose of illustrating environmental structure and forms no part of the claimed design. The dot-dash line(s) define the bounds of the claimed design and form no part thereof.