Hi I saw this design recently and I was wondering how you could make this type of design in photoshop or any software in general. I don't know how to describe how it looks. Thanks!
looks like torn edges merged with a bit of photocopy filter
Photoshop > Filters > Filter Gallery > Sketch Torn edges or Photocopy or both, try to play around with the settings and then just add a gradient map on top of the layer with the colors you'd like