I've had some success getting colleagues onboard with this, but some just don't like bulky over-the-head headphones and refuse to use them, even if they've been expensed.
Has anyone identified high-quality earbud-style headphones/mics that produce near-flawless voices from their coworkers? The microphone portion is extremely important -- earbuds benefit the person wearing them, but if they're using their laptop mic to speak, it's problematic for the other people in the meeting who have to hear their voice echoing, their dog barking, doors slamming, etc.
[1] https://news.ycombinator.com/item?id=24610166
[2] https://www.benkuhn.net/vc/#hear-yourself-clearly-with-open-back-headphones
There are plenty of fairly cheap earbuds with built-in boom mics, of varying quality.
If folks really have an aversion to over-ear headphones I'd suggest that direction.
I suspect “near-flawless” is impossible with earbuds because you’re using Bluetooth, a mic that is far from the person’s mouth, and tiny hardware.