I worked with a guy 20 years ago that had this on his desk, so it's not just a meme, they exist.
It works pretty good with Sinistrella, and works more realistically with Epicphotogasm. I'm sure there are others. This shits on anime models, but if you find one that doesn't make it look awful, let me know or post pictures.
Eular A for a more unhinged take, works better with double exposure, but is awful at cats and faces.
DPM++ SDE (not Karras) was having the most luck, as it's a little more dreamy, and euler A is more likely to actually do the double exposure better, but is awful at cats.
That being said, poke around with the settings,
Go with basic negs, or go crazy with your neg soup, it seems to matter, but you'll have to find your own path there.
Try full strength 1
((double exposure)) at the very front, going wide res helps a lot with cowboy shot
meme, woman or man
Trained on space background, laser background, black background.
cat, holding, holding cat, ,(photo insert)