fate of emperor varis at the end

[Absimiliard]

Where is there any evidence of that?

https://www.finalfantasyxiv.com/anni...?rgn=na&lng=en Right here. Louisoix clearly states his opinion on the Twelve in this entry.

There is zero evidence at this time of actual gods existing within the world of FFXIV. The one entity that was originally presented in a manner that all but confirmed its godhood has been revealed as just an excessively powerful primal. Even the Kami are shown to be little more than the product of aether and belief.