Yeah, I see what you mean, but my shoulders look almost exactly like that. Doesn't hurt at all, just very annoying when carrying a backpack as the straps will always tend to slide off from my 'drooping' shoulder.

But I agree with your comments about the background, that looks like a fever dream. And of course my situation isn't the norm, so the shoulders/clavicles can be treated as a red flag, it's just not definite proof and care should be taken to realise some people might actually just be built weird.