I am an active LDS member, and all of the church references in the show are in accurate. It’s a good historical fiction show, but they do not stick to what is accurate for my church. They actually are making fun of it most of the show.
Members of the church were quite kind to African-Americans, Native Americans, families were kind to one another Brigham Young was not the type of person that the show depicted him as, and he died of old age, his Son never tried to stab him.
I liked the show in general. But the ending was bad.