I use GoToMeeting daily, and I see the same two pop-ups in every single meeting.
One is the "You are muted; click here to start the meeting unmuted". The other happens when you are muted and make a sound; it reminds you that you are muted and gives you the option not to remind you again.
After using this software for 2 years, they are just annoying noise. I'm fully aware that I start meetings muted and when my microphone is muted, and I don't need the constant reminders. Starting the meeting muted is an explicit choice in the preferences, so it shouldn't trigger a reminder.
version 8.47.2 Build 14316
Windows 10. Just to clarify, I'm not talking about the built-in Windows action center notifications - these are the yellow pop-ups that originate from the GoToMeeting control panel when a meeting is in session.
That's right -- If you are running GoToMeeting from a Windows desktop, then you can go into the software Preferences: Meetings:: Usage Tips, in order to disable those alerts.