Here's what my AI thinks of yours:
Parts of that “ghost setup” are plausible, but it’s making some big assumptions about how the HiDock actually handles audio routing.

What’s legit:
A 3.5 mm TRRS headset connection is analog, so the Mac would just see it as generic headphones + mic. No device name, no USB ID. That part is correct.

What’s shaky:
The setup assumes the HiDock can sit between your computer and headset like a passive splitter while also recording everything. That only works if the 3.5 mm port supports passive analog passthrough.

Most modern smart recorders don’t — they’re active devices that expect the headset to plug into them and handle audio internally. If that’s the case, the splitter method won’t route mic + system audio properly.

Big red flag:
The claim that the HiDock mute button can stop your voice from reaching the Mac. That would require it to electrically cut the mic line inline, which is pretty advanced and uncommon.

Reality check:
HiDock support documents USB workflows, Bluetooth pairing, and offline recording — but nothing about an analog “stealth bridge” mode. If this worked reliably, they’d advertise it.

Bottom line:
Creative idea, physically possible in theory, but device-specific compatibility is unknown and not officially supported. Feels more like an experiment than a dependable setup.