Because of Guixu’s appearance, during the Khaenri'ah war of that era, the Dendro Archon and Egeria did not die, and Raiden Makoto was rescued by him.
Raiden Ei did not leave Inazuma either. During the Abyss invasion back then, under Raiden Ei’s all-out suppression, the resulting devastation was far, far smaller than in the original timeline.
Several characters who should have died were still alive and well.
Chapter 53