[khedoros1]

I'd say that if they're doing A/B testing or "field trials", then they aren't sure enough to roll the feature out to Stable. That's not Google's policy, though.

They run experiments in Canary, Dev, and Beta, then conduct a roll-out to stable to get a broader test (per the explanation here): https://textslashplain.com/2017/10/18/chrome-field-trials/

I'm just grumpy that we don't live in the perfect world, where confusion-inducing processes like this wouldn't be necessary. I've never been that comfortable with the "break a few eggs" method of progress.