No, it's not a trash documentary in the sense that the film is trash - rather it's about trash, especially plastic waste, and how it gets treated and recycled (or, spoiler alert: not). You can watch it here in the ARD Mediathek.
It's hard to find words about all the shit going on in today's world, really. And very obviously, one of the best ways to help with the plastic waste problem is to cause as little as possible.