This plant species generates proteins much like meat does. It helps to warm them, clean them, incubate their young. It evolved alongside them, and was fine-tuned with engineering long ago.
They have very little military and are not interested in any sort of martyrdom. They live relatively in our region of the galaxy but they seek minimal involvement with the old empire. There is kind of an unwritten rule that they're safe as long as they're open for business. Eg: to contract for labour. Their relationship with humans is a bit at odds. To them, we are slaves of an enemy that easily threatens them. They wouldn't consider us safe for them to be around.
They understand the concept of isbes but they let the planetary system kind of take care of reincarnation and the like. They don't keep close track of whom reincarnates where, although they could uncover this with deep research. Much like us, they recognize each other's isbes on occasion just as part of their random encounters and can of course develop relationships through the familiar.
They are not so easily telepathic. They can signal things like "I'm not ok. Please help." Or: "Thinking of you. Please contact me." But otherwise they rely on a digital kind of internet. They have a natural part of the brain (again, still engineered long ago) that lets their thoughts talk to their devices. Imagine if we were to engineer ourselves with neuralink and give it lifi. Their brain has a portion that grows a small crystal to do this.
Their federation has a republic. Think small when I say federation. Like the "united states" federation. They vote, have taxation and court system etc (but I hesitate to use the word "court". Here that word has a much more insidious connotation just like the "crown".)
Hmm what else. Well I can always try to answer other questions. Whether they have a big role to play in our freedom I'm not sure. I think they too feel the effects of a wartorn galaxy due to the clash of the old empire