Assuming by 'conservative' and 'libertarian' you mean 'right wing'... [sorry. But American political labels are confusing from a European viewpoint] ... that's

Assuming by 'conservative' and 'libertarian' you mean 'right wing'... [sorry. But American political labels are confusing from a European viewpoint] ... that's because the fediverse is just as censorious as all the social media it seeks to replace. Last time I looked into this fediverse stuff, the biggest 'Mastodon' instance by number of users was affiliated to gab.com. But good luck finding that, if you check out any of the directories of instances, as they [the rest of the fediverse] pretty much all decided to blacklist the Gab instance and block users on those Gab instances from being able to interact with any of the other instances. I think, in the end Gab went off, forked Mastodon and rolled their own version. BTW --I'm not a right-winger or supporter of Gab in any way. I have no interest whatsoever in US politics. But I did note the irony that; the first thing the kind of people who protest most loudly that we need open alternatives to Twitter et al did, when they got their hands on the control levers of their own tiny Twitter clones, was to start banning people and silencing viewpoints they disapproved of.