I've just started using Bluesky. How does it compare to Reddit? There are dedicated subreddits for the conservatives and the liberals, and every subreddit has moderation rules. I use the right and left-focused subreddits to keep track of what's going on in different universes. However, I must mention that you won't find a reasonable discussion of left vs right ideologies on the main sub-reddits, as Reddit users are predominantly left-leaning. But at least there are smaller forums where these two groups meet and interact, and there is some debate.

Bluesky is a lot more like old, early algorithm twitter.

Reddit is a cluster of independently operated communities that occasionally get signal blasted onto the main feed. The top moderator of a subreddit owns it and sets any standard they like.

With Bluesky there are no defined communities outside of collective engagement with particular topics or hashtags or networks of follows. There is also a "Show me [more/less] of this" button every post, and so far it seems like the platform is pretty solid at respecting your preferences. They also seem to be actively moderating the really open bad behaviour off the platform.

I don't think Bluesky is as good as a well-moderated subreddit for long form discussion, but if you spend a little time curating your feed I think you might enjoy it.