Lemmy vs. PieFed vs. Mbin

I've been researching for the past week Threadiverse projects (Lemmy at first, then PieFed and now Mbin) with the goal of testing out their interoperability with the rest of the Fediverse.

Apologies in advance if this is the third post you see from me - this one is my first in Mbin.

I wonder if you have any insights regarding the differences between the 3 - advantages/disadvantages and opinions on your favorite project?

I'm also interested to see if Mbin manages to federate mentions (unlike Lemmy and PieFed who falls short). So for the purposes of this test, I'm mentioning:

• my Mastodon account @_elena@mastodon.social
• my Friendica account @elena@opensocial.space
• and my Lemmy account @elena@lemmy.world to see if anything happens

Thanks and happy to be here!