No, there's a trust-on-first-use procedure where you have to accept the computer's key on your phone.

Not only is it TOFU but that comment is doubly wrong because you can't really back up much other than the bulk storage directory without adb root (which requires a custom build, which obviates the issue to begin with).

Apple has the same thing, but for some reason added Developer Mode which you must enter on the iPhone first. It’s quite involved, with a restart and 3 confirmation dialogs. That had me wondering why they are suddenly so cautious around this.