There's a bunch of other neat features, but monitoring talk time is what I use the most. It works in real-time as a bot on Google meet and Zoom (the two platforms I use). I believe it should work on other video platforms as well. Just sign up and it'll start joining meetings on your calendar (if you provide it access).
Instead of using the idea everyone should have equal talk time. It depends on a meeting type. For instance, in meetings with clients or during interviews, I want to let them out talk me. "Tell me about yourself", etc. Obviously during presentations I would like to talk more, etc.
Even in this study they are targeting only one particular conversation type. It seems obvious if you try to be the most relatable and interesting, people will favor you... But that's not every conversation. That wouldn't be the case if we're all engineers trying to build a bridge.