The ornamental design for a displayscreen or portion thereof with animated graphical user interface, as shown and described.
5.1 is a first image of a display screen or portion thereof with animated graphical user interface showing the new design in a first embodiment;
5.2 is a second image thereof;
5.3 is a third image thereof;
6.1 is a first image of a display screen or portion thereof with animated graphical user interface showing the new design in a second embodiment;
6.2 is a second image thereof; and
6.3 is a third image thereof.
The appearance of the transitional image sequentially transitions between the images shown in reproductions 5.1-5.3 and reproductions 6.1-6.3 respectively. The process or period in which one image transitions to another image forms no part of the claimed design.
The outermost broken line rectangle showing a display screen as well as the remaining broken lines showing portions of the animated graphical user interface, form no part of the claimed design.