No, there is only auto save at the time of my death, there are no quick saves either. There is only save before the battle with the Lightborn. I don't have any mods.

When I went through the quest <<Hope for the end of the world>>, I did not put on a deep-sea helmet and died, and the last save was at the time of my death. The nearest save on the <<Sins of Our Fathers>> quest. I don't want to go through all over again.