Speaking as someone who used to visit specific pages on Twitter and use it to follow breaking news by hashtag, at some point a few years ago it became impossible to see new posts in the former case and a login wall was put in front of the latter case. Even when someone shares a direct link to a post nowadays only a small part of the thread is actually visible, which makes visiting the site pointless. So, yes, X is now a dumpster fire. When I go there I don't see great tech conversations, I either see a weird algorithmic top post from years ago, or nothing at all.

Mastodon and Bluesky are intrinsically more valuable, not necessarily because of the quality of the content itself, but because it's actually possible for people to read and search said content.