I was able to figure out where some strange claim I saw long ago from someone complaining about Marvel and saying Loki can't shapeshift and the gods depend on animal skins to do so came from (despite this contradicting the myths). It came from non-Marvel norse mythology inspired comics Valhalla by Peter Madsen (which are popular in Scandinavia).
I found out because I was curious as to how they managed to make some myths "kid-friendly" and got my answer about how shapeshifting works i those comics through that.














