I've seen plenty of ant-left, anti-feminist, anti-liberal, anti-democracy, right wing conspiracy stuff on Reddit, and of course mainstream conservative and right-wing political content.
But I don't necessarily think it's censorship to draw a line in the sand where extremism is concerned. Or if it is, then it's censhorship employed for reasons other than mere politics.
I think it's important to differentiate because the narrative here, as it's often employed, has been to describe social media as censoring "conservative" content en masse, on the premise that social media is engaging in an organized leftist conspiracy of censorship, which itself is an extension of the conspiracy theory that all mainstream media is owned and run by leftist/globalist/DNC operatives pushing a political agenda.
I think that's a misrepresentation of what actually happening, or what the motives actually are.