Point Cloud Animation

Could someone help me how to make this animation (point cloud animation) from an object in blender? Thanks

If someone could explain it simply for a beginner I would be grateful, thank you again

Try using the appropriate Addon.

Point Cloud Visualizer

Thank you very much. So I can animate it afterwards?

Here’s a very simple setup that you can animate…
To keep the original colors of the objects, you should bake - combine a new texture to use in the material.

Thank you so much.