When a significant portion of devices are patched (including gui apps on mac), pulling off an MITM without detection is pretty much impossible. That would be usual culprits of telco, ISP, or public wifi. That's what I mean by the window has closed. Anyone attempting is taking significant risk of being detected; at least in my neck of the woods would be illegal to do as well.
This happened to me a couple of times (out of thousands of meetings) and it was because the audio was for some reason being piped to a different audio device.
In my anecdote, the tattooed person was Asian but non-Japanese. We did this several times, but of course it's still a small sample size, so take this with a pinch of salt.
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