TIL humans are the only animal with a chin. We aren't sure why.

Many animals, including most felids and canids, have a fifth toe (aka dew claw), which could potentially evolve into a thumb. You don't normally see it on domestic dogs though, because if I'm not mistaken, it usually gets cut off when they're a puppy due to it being weak and having a tendency to get caught on things.

Alternatively, there is polydactylism in cats, which can give them extra toes that can help them grab things (I've seen a video of a polydactyl cat using it's extra foretoe like a thumb, though I can't find it). It seems possible that, overtime, an extra foretoe like that might eventually provide enough of a evolutionary benefit for it to become a standard feature.

If cats evolved human-like intelligence, they'd absolutely have night clubs of some kind. That said, I'm not convinced that cats don't already have human-like intelligence and aren't just choosing to not use it, but that's beside the point.

Walking bipedally is something a lot of smaller mammals can do as well, it just isn't their normal mode of locomotion because their bodies aren't currently designed for it. Going the evolution route again, however, and it's possible that a species might eventually decide to stand up like humans did. Edit: I forgot about birds, dinosaurs and semi-bipedal mammals like the pangolin. Birds and pre-historic theropods walked on two legs, and pangolins have heavy tails they can use to balance on their hind legs so their forelegs are free to dig at ant mounds. So humans aren't the only animals that walk on two legs.

The wing things are part of her clothing.

You're correct that being bothered by a chin alone is strange, but,

A) people have weird things that bother them, sometimes illogically

B) I kinda look at anthropomorphic animals as being evolved from their real world counterparts, so I tend to rationalize things in regards to how they might have evolved. It makes it more believable for me.

C) iirc, in the context of the movie that specific character is from, thats actually someone's VR avatar. As such, it makes sense to make human concessions like opposable thumbs, five fingers and toes (cats technically have five toes on each forepaw, four toes on each hind paw), walking plantigrade, etc. A chin seems like an odd concession to make. From the article, it doesn't really give humans any really evolutionary advantage so it's not like you're gonna be unable to do something because you don't have a chin; and based on what I've seen in the furry community, chins on anthros doesn't really seem to have much of an aesthetic appeal either (otherwise nearly every fursona would have an obvious chin).

D) It just looks weird. Idk man, it just looks weird to me.

That said, I don't tend to mind hybrids or mythical creatures like gryphons, dragons, dragon-cats, or whatever, so idk. It just looks weird to me and I guess the thing about humans being the only ones with chins is a explanation and justification for why I find it weird-looking.

As bigfig said, your cat probably doesn't have a chin. That said, you might consider feeling your cat's chin to see if it's actually a chin and not just fluff or something.

If you feel a boney protrusion similar to a human's chin, then you should unironically contact an evolutionary researcher. They might be fascinated about your cat having an actual chin as humans and only humans (not even neanderthals) are the only known chin-havers. Who knows, your cat might be the "missing link" between chinned and chinless humanoids.