The video through various tests show that DEF is being snapshotted (Husk Set, Whiteblind, Gorou), while Geo DMG (Husk Set, Gorou, Ningguang) and ATK (Sara) aren't. It is unknown/unconfirmed at the moment this was submitted if Crit Buffs such as Gorou C6, Rosaria A4, and Traveler C1 are being snapshotted or not.