So . . . The Multiverse

Since League is in a Multiverse, and the Void and Targon are not in the 'Base' Universe, does this mean that the Star Guardians could be fighting the same Void? Or that Kai'Sa left the Void in a different universe then she was born in? Do Bard, Ekko, and Zilean move through the multiverse when they 'rewind'? Is Summoner's Rift its own universe? Is Rick somewhere in there? If Zoe move through the Multiverse, has she met Jinx yet?