My friend has the Razer Anzu which you can get prescription lenses for and he loves them because he really, really hates wearing headphones.
However, I sadly cannot comment on whether or not others can hear the audio from the glasses, because unfortunately… my friend is a bit of a shut-in and lives five states away, so almost all my interaction with him is online, I can’t really go get a taste in person.
Our main complaint/takeaway is that it is very unlikely with how these are built that you would be able to replace the battery that powers them, so the bluetooth capability will eventually degrade until it has to be plugged in at all times to work. At that point, they will still function well enough as glasses, but that’s kind of a moot point because the whole reason you bought them was for the bluetooth. He’s had his for over a year and the battery is fine, it’s just something to consider long-term.