How could i do this confetti effect?

ive been stuck on this for mutiple days heres a link to the video im using for refrence, the effect im talking about is near the middle with confetti comes falling down how could i make that effect?
https://gyazo.com/1955ebcd46220cf1da28c8255b373855.mp4
i thought mabye it was made with particle but you cant use them with a viewport. any help with this would be apperciated.

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That looks like its a viewport with loads of parts unanchored then de spawning