No, they do not. Snapshotting in video games refers to when damage buffs are applied to a skill and linger as long as the skill remains active. However, the damage of Yae Miko's totems shifts dynamically depending on Yae Miko's current status. If Yae Miko is buffed, for example, existing totems will do more damage, and if these buffs expire on her, they will in turn do less damage.