I also wonder what the sky looks like from a planet orbiting a star in that long tidal tail. Not many nearby stars except for the strip of the tail.
I’d guess the tail would look a bit like our milky way, and that there would be frequent comets from the gravitational shredding of the local Oort clouds.
If one were near the end of the tail the tail would look like a scimitar being swung at one’s throat, with the main galaxy blob looking like the entity swinging it, that and a night sky punctuated by cometary daggers, and the surface rocked by frequent impacts, leads me to suspect they’d be muslims...
I think the two galaxies themselves would look like a pair of big eyeballs passing over your head every night,