The ornamental design for a displayscreen or portion thereof with animated graphical user interface, as shown and described.
FIG. 1 is a first image in a sequence for a first embodiment of a display screen or portion thereof with animated graphical user interface showing my new design; and,
FIG. 2 is a second image of the sequence of FIG. 1.
The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-2. The process or period in which one image transitions to another image forms no part of the claimed design.
The broken lines shown in the drawing represent portions of the display screen with graphical user interface that form no part of the claimed design.