The ornamental design for a displayscreen or portion thereof with animated graphical user interface, as shown and described.
FIG. 1 is the first image in a sequence for a display screen or portion thereof with animated graphical user interface showing the new design;
FIG. 2 is the second image thereof;
FIG. 3 is the third image thereof;
FIG. 4 is the fourth image thereof;
FIG. 5 is the fifth image thereof;
FIG. 6 is the sixth image thereof;
FIG. 7 is the seventh image thereof;
FIG. 8 is the eighth image thereof; and,
FIG. 9 is the ninth image thereof.
The appearance of the animated graphical user interface sequentially transitions between the images shown in FIGS. 1-9. The process or period in which one image transitions to another forms no part of the claimed design. The wavy broken line perimeter in all FIGS. illustrates a portion of a display screen; the broken line showing of the text within the display screen or portion thereof in all FIGS. is included for the environmental purpose only; the remaining broken lines illustrate portions of a graphical user interface; all broken lines form no part of the claimed design.