Since Palpatine survived on Exegol thanks to the teaching of Plagueis, I say dive in head-first and confirm that Snoke is a clone of Darth Plagueis.

(Listen, if the canon can explicitly change Noghri from the Legends version to the Rebels version, plays coy with what a Bothan is, you can change Plagueis from a Muun to a Snoke since him being a Muun isn't confirmed!)