We claim the ornamental design for a display screen 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 our new design;
FIG. 2 is the second image thereof; and,
FIG. 3 is the third image thereof.
The dot dash lines in the figures represent an unclaimed boundary line and form no part of the claimed design. The perimeters of the portion of the underlying portion of a display screen and the graphical user interface are understood to be flush.
The appearance of the animated graphical user interface sequentially transitions between the images shown in FIGS. 1-3. The process or period in which one image transitions to another forms no part of the claimed design.