any thoughts on how this was put together?
I'd start with Card Dance, then look at Displacement map.
It will take some planning. You won't be able to just drop an effect on a footage layer. The hardest part will be designing the displacement maps.
It looks like each video layer was duplicated and cut into pieces with a set of masks, and then each of the duplicates was animated to slide in. There's also a distortion effect. Seems relatively simple.
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