An idea I had for a worldbuilding project long ago that sticks in my head a lot: shadowrun style Return of Magic but it turns out that nobody is actually human. Humans are just the form of the various creatures of the world are forced into when there is no magic. Everyone gets TF'ed to some manner of fantastical crrature, the most humanlike of which are some really Funky Elves. there are taurs, some people are just dragons
humanity is a lie sold by big ancient wizard spell to save money on having to produce different types of ergonomic clothing and furniture (not actually but lmao)