Marvel movies went a different route from DC by staying close to science(or SCIFI) than magic, myth, etc. It presented mythological creatures like Thor as a more advanced species on another planet with better technological prowess. But with Wanda, Marvel has done a DC. The movies didn't plow into her character or her witchcraft abilities and stayed close to logic but not with this series. With WandaVision, Marvel went full-on with witches, witchcraft, magic, spells, etc, and common sense in general.