Ocean acidification tipping point, climate change tipping point, rose of wars and fascism, microplastocs - these are just facts of things that are happening. I feel like doom scrolling would be an exaggeration of things that are happening or will happen, not just reading about reality.
I’ve always understood doom scrolling as the endless/mindless scrolling to the point of detriment, not the actual content itself.
It can be whatever you want it to be.