Biggest for me is no promoted garbage. Second is that I can have more indepth conversations than on Reddit. Your replies can get seen if you post on "Hot" even if they're not cheesy one-liners. Quality of discussion is far better than my last few years of using Reddit full time (until 2023).

Once in a while I glance at the Reddit website and there's just so much short form video on the front page that it's so annoying to know what's going on.

Of course the more popular discussion topics (USA, tech, politics) are largely going to be the same as Reddit.

One advantage of this model is that moderation is more tailored to the instance topics of interest, without losing too much of the wider sphere. So .world can handle most of the popular general topics, but mander can handle moderation of topics from a more scientific lens, .dbzer0 can handle the intricacies around copyright law, .blahaj zone vehemently protects users right to call themselves whatever they wish, so on and so forth. With Reddit, if the site admins don't like something you do, you get shut down no matter whether the community there accepts it or not. Here, if that happens and is unpopular, people can leave and go to another domain without leaving the federated network. Another is that servers hosted in countries outside the USA (feddit.de, lemmy.ca etc.) don't necessarily have to follow USA law, while Reddit does.