Some time in the past few days, #Google, which of course is well-known for always adequately testing their software before they ship it </s>, broke phone calling in their #MessagesForWeb web app. I've tested it on four different computers, two different browsers, two different operating systems, and two different Linux versions. In all cases, I can't hear audio coming from the other end of the call. I use this functionality nearly every day so I know it broke recently. *sigh*