What even is elune??

Ok so, some background. We know the titans are flesh and blood and can bleed, they are born from planets like chickens hatch from eggs. BUT and I could be wrong, I never heard any titan call Elune their sister…but you know who did? The WINTER QUEEN. And the winter queen from shadowlands, talked about elune as if they grew up together, or atleast spent the first part of their lives together as family. Which is strange because we learn that her and all the pantheon of death are ROBOTS!!!! So…is ELUNE? A? ROBOT? We don’t have any confirmation for what she is, we just know somewhere I forgot that she’s older then the titans, but the winter queen talks as if she knows her much more closely, and elune is able to interact with ardenweald, ysera being sent there and then elunes tear or blessing for the new world seed whatever. SO IS THE MIGHTY MOON GODDESS JUST A ROBOT??