It never went away.
With the whole twitter debacle I am trying what is suggested here - not the blogging bit, I’m already doing that - but I have been through everyone I follow(ed) and looked for links to websites, blogs and homepages, etc. Sadly, there are surprisingly few. And a couple that had blogs had misconfigured or missing RSS feeds. But for the ones that have them I am going to try to keep up with what they are up to by using RSS rather than jump over to Mastodon.
The updates will be less frequent, but I’ve already realised I’ve missed some great posts that I never saw the authors mention on Twitter.