kbin's integration with Mastodon/microblogging fediverses is neat.
kbin seems to have more magazines catering to more of my specific interests and hobbies, while Lemmy's communities are more generic.
This is specific to the instance I am on (beehaw.org), but I can't access the Lemmy instance when I'm using ProtonVPN.
I just read through the Mastodon thread on how the Lemmy developers are not consistent with their own policies of human rights. While that doesn't automatically mean that Lemmy is bad, I feel more comfortable using software by developers who are not known to be "tankies".