I Fix this problem.
you want to drawing/animation Right
this official Blender demo file modify with animated
I first calculated the geometry from the Realize Instances node and then resampled the curve using length mode in the Resample Curve node. Later we deleted the curve points using the Delete Geometry node. Converted the animation to a draw effect using the Delete Geometry node selection input. Played the animation in all frames using Greater Than and Index and Scene Time in Compare node and controlled the speed from Multiply node.
How to Use --> resample length value is increase geometry and Multiply node value control Animation speed and i join both value in group input node
and you want grease pencil to animate embroidery
like this animation youtube link
similer animation - my animation in add animation follow by curve
i hope solved your problem