Asklemmy

The 'religion' I think most accurate is all in on a deity of light.

Given light can be more than one color at once when not measured and different separated eventual observers can each measure different results then as long as a deity of light was fundamentally unobservable during this life and only observed on a relative basis after departing it - such a deity's qualities and characteristics are entirely up for grabs.

Believe what you want. If I'm right, all options are on the table - relative to you. So your beliefs don't constrain anyone else's or vice versa.

Even though I do think there's a rational underlying mechanical objective truth to how that setup may have been achieved, my guess is most people wouldn't like that version nearly as much as their own dearly held beliefs, spirituality, or superstitions, so my genuine hope is that after death what they most hoped to be the case for themselves is what they'll find irregardless of how it works behind the scenes or what it might be for others.