It does not count under private memory, so I assume mapped but unused. The last time I asked Claude, it said confidently it was a bug in Swift's networking stack, which I doubt.
I’ll bet Claude was channeling some Reddit guru dripping with swagger born from knowing their understanding of coding is far more advanced than most big-shots in the field— especially impressive because they only wandered into /r/LearnProgramming for the first time several months prior.