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 of a first embodiment of a design for a display screen or portion thereof with animated graphical user interface;
FIG. 2 is a second image thereof;
FIG. 3 is a third image thereof;
FIG. 4 is a fourth image thereof;
FIG. 5 is a fifth image thereof; and,
FIG. 6 is a sixth image thereof.
The appearance of the animated user interface sequentially transitions between the images shown in FIGS. 1-6. The process or period in which one image transitions to another forms no part of the claimed design. The line dot line showing of a display screen or portion thereof, form no part of the claimed design. The text and other elements shown in dotted or dashed line form no part of the claimed design. All other text, numerals and other elements, excluding those shown in dotted or dashed line, are part of the claimed design.