Videomaker – Learn video production and editing, camera reviews › Forums › General › How to edit like a Chainsmokers video?
I doubt that effect was done in a video editor but maybe someone else would have more info. Guessing I would say the collage was made by a digital artist in another medium (maybe photoshop). I’ve seen these collages on magazine covers and such. In the video editor it’s likely just a zoom of the digital collage close up to wide angle, and then a quick dissolve into an actual photo that the collage was modeled on.