I believe death, like many other things and concepts, is not beyond our knowledge, but obviously not covered by it entirely.
I do believe many accounts and systems concerning death and what happens "after" it to be somewhat true, even with their differences.
I think also they are incomplete and that it is impossible to conceptualize what death is like. If it was possible for some people to figure it out before dying (or after dying, like in reincarnation) I don't know, but I don't discard it either.
While I don't discard also the shitty view that there is "nothing" beyond death, I view it as an intuition of the total dissolution of the aggregates. However the people who promote this view are uncapable of going beyond the ego to the supreme, therefore do not understand what they are immersed in in order to exist and live [what some call God], and deem the total destruction of te aggregates to be the end, unaware, if only consciously, that there are bigger thoughts to expand, and higher unfoldings.
I can conceive of the nothingness after death while at the same time with a kind of consciousness. Maybe one does not exclude the other, like ending a program that can be revived again by only activating its code.