As RSS fans here may know, you can grab RSS feeds of communities and even your profile on Lemmy instances if you like. You can also do this with profiles on Mastodon, and I imagine other ActivityPub microblogging services.
However, you may not have known that public Bluesky profiles are much the same. By public, I mean their posts can be viewed without signing in to Bsky. I’m not sure but I’d think those limiting their visibility may not (or should not) permit pulling a RSS feed of their posts.
All you do is copy the account’s Bsky handle, e.g. [username].bsky.social (or custom domains, should work the same I think) to your RSS reader of choice, and you should have a feed of their posts.
It’s a nice way to get feeds for news sites that don’t directly offer them and that have moved to Bsky but not Mastodon or other ActivityPub microblogging services. It’s also great if you’re simply not into microblogging in general and/or don’t want to make another social media account and download another app.
Hope this helps!