To add to this, Java and other GC languages in some sense have manual memory management too, no matter how much we like to pretend otherwise.

It's easy to fall into a trap where your Banana class becomes a GorillaHoldingTheBananaAndTheEntireJungle class(to borrow a phrase from Joe Armstrong), and nothing ever gets freed because everything is always referenced by something else.

Not to mention the dark arts of avoiding long GC pauses etc.

It's possible to do this in rust too, I suppose. The clearest difference is that in rust these things are explicit rather than implicit. To do this in rust you'd have to use 'static, etc. The other distinction is compile-time versus runtime, of course.