Spoiler Warning if you're not caught up on Stranger Things 4. If you haven't watched it yet, skip this story.
Back in 2016 the kids were doing an interview for the show. At one point, shown below, Gaten Matarazzo who plays Dustin, speaks of a fan theory as to what is going on in the Upside Down. Now here in 2022, it seems this was very much spot on.
You can view the video directly on YouTube here: https://www.youtube.com/watch?v=WAuN5yVFkfQ
Well played 2016 Stranger Things fan who nailed this. Well played indeed.