Sure they do! New grads absolutely have people skills. They make silly workplace norms mistakes too, but they generally aren’t clueless about how to get along with people like you see in a lot of programmers from earlier generations.
People skills arent exactly JUST get along with people. That would make Steve Jobs absolute failure in people skill in that niche criteria. He was genius at people skill in area like motivation and business negotiations. Vast majority grads have terrible people skill (40yrs in HR attest to that). Things like ghosting and quiet quitting and ultra job hopping are a thing with gen z and gen millenium. It is extremely rare in gen x and earlier.
It would be great if the companies who complained about ghosting and quite quoting quit ghosting and constructive dismissal, but the world isn't all perfect sadly.
Perhaps grads from before 2012 years ago before everything took to the net and compsci was pushed harder. People are growing up on the internet legitimately believing that Twitter and Reddit are how you communicate with people.