One of a set of four photos (attached in zip file, original webp, converted to PNGs).
Source: Source: https://www.reddit.com/r/UFOs/comments/o9a39j/here_ya_go_guys_deleted_pictures_from_the/
What looks fake to me is the grain. It looks like the photoshop "Add Noise" filter, which adds noise at pixel resolution, rather than some actual film grain. So you get lots of random short lines.
Here, I've recreated it on the left, with the "photo" on the right.
By comparison, here's a crop of photo I scanned in at 600dpi
Film grain is there, but fuzzy, not pixel aligned noise.