As far as I've always understood it... dissociative fugue is [and has been for a long time] way more than like, fainting and not remembering, or not remembering an hour or two. Classically- it often describes situations as drastic as people just leaving their lives entirely, winding up in a different state for months possibly years. It has been shifted around but even now it is used in that manner often instead of using specific DSM terminology [particularly RIGHT NOW because new DSM versions and so many people just have been tossing theirs in the trash and retrieving it the next day to only wash rinse and repeat. ...which is a good time]

They don't know where they came from and have no previous knowledge of their lives before.

Dissociative fugue is difficult to get confused with Stendahl Syndrome- I'm actually pretty sure that Stendhal would be stuck in the back pages with all the "uncool" culture-bound kids.