Doom scrolling is facilitated by ad-optimised algorithms that push low-nuance, emotive content that gets a reaction, for views. (Thinking particularly of twitter and Facebook here)

The fediverse doesn’t have that, and has no reason to, because as soon as any provider starts pushing ads, people will switch servers. So I think it WILL stay that way.

Also, I think as a consequence of having less combatitive content up front, people are generally in a less heightened emotional state as a baseline, and are able to approach more nuanced content more thoughtfully.