Also, as far as TFW's No Politics goes...it's nice in theory but then you end up with the current IDW stories that lean HEAVILY into politics and religion. I've had more than a few lengthy posts exploring the parallels between the IDW Decepticon movement and various real world socialist movements deleted because it was technically "politics." So hug 'em. I really only visit there these days to poke around the podcast subforum.
My person canon is that the Quintessons created Cybertron as a factory to make the TFers as mechs, but they became self aware and they revolted. then Cybertronian society began to develop and the events of the revolt became mythologised as the stories of the Knights of Cyberton, the Thirteen, etc...real events that became the basis for religion, essentially.
Squid robits build machines. Machines decide they had enough of that and kicked the squid robits off the planet. Everything's pretty chill for a while until machines get mad for dumb reasons and break the planet. THE END
Primus created Cybertron and The Thirteen. Then later, the Quintessons come to the planet they call Seibertron and use Primus' power; the plasma energy chamber to forge military robots Destrons and consumer robots Cybertrons. The Cybertrons and Destrons rise up and drive the Quintessons away but are unable to live in peace with each other. And so the Cybertron population become the Autobot army and the Destrons become Decepticons, with the Autobots renaming their planet Cybertron. Far far later still, bacteria that was present on the asteroid Primus imprisoned himself within has evolved into organic life within Cybertron...
I like the Quintesson origin partly because it's a twist on the robot revolution cliche, partly because of the irony of a people uniting against their own creators just to fall into endless civil war, and mostly because i just really like the Quintessons themselves.