The ornamental design for a displayscreen or portion thereof with animated graphical user interface, as shown and described.
FIG. 1 is a front view of a display screen or portion thereof with animated graphical user interface showing a first image of the claimed design;
FIG. 2 is a second image thereof;
FIG. 3 is a third image thereof; and,
FIG. 4 is a fourth image thereof.
The broken lines in the figures show a display screen or portion thereof, and form no part of the claimed design.
The appearance of the animated image sequentially transitions between the images shown in FIGS. 1-4. The process or period in which one image transitions to another forms no part of the claimed design.