OK, let's put this into a corporate perspective.
Apple has repeatedly said they're not caught up in the downsizing that's hit other tech firms like Microsoft and Google.
But they are feeling the pinch, certainly. Mac sales are down. I'm not convinced the media services like Apple TV, Fitness, News etc have the take-up Apple expected, either, given that Apple seems to give away Apple TV subscriptions everywhere (I've had many trials of things like Apple TV, Music, and News since they started and never paid for them! This is basically a way to pump up the subscription numbers to create confidence.).
it's entirely possible that Apple is offering what, in the UK, we call voluntary redundancy. I'm unsure of the US term for this, but essentially it's where the workforce is told that if they want to leave then nobody will object and they'll be given a good severance package. It's often the step before large-scale layoffs.
However, if this were the case, then it would almost certainly have been reported somewhere in the media. And it hasn't been.