Linkage Tokoyami

First, thank you so much, you don't know how much I've struggled getting all these information before. And another question are there multiple ways to evolve to Hisuian Avalugg? Cause mine evolved just like the Pokedex said with a Level Up at Mount Terajuma. Also I saw some people claiming the Peat Block for Ursaluna already exists but I can't seem to find it, do you perhaps know its location or if what those people said was just a hoax?