This tutorial shows how to use the Freeze Scan and Time Warper effects, which are part of the „Creation Trippy Effects“ template for After Effects, available at CreationEffects.com/creation-trippy-effects.html.
The Freeze Scan, aka Time Warp Scan, is a popular filter for phones, but you can now apply and customize it in After Effects. It will scan your footage from one side to another, freezing pixels as it scans. This effect is just one of 100 effects in the Creation Trippy Effects package, which has tons of trippy or psychedelic effects for your footage, and custom, hypnotic animations.