I jus talked to one of your supporters and have confirmed that GotoMeeting no longer supports none-Microsoft-365 integrations. I would like to request such feature to included as all of our users are running Office 2021 LTSC version. For now, I have asked our users to schedule meetings via Goto Online Portal but this is not a good work-around as they can't see the meetings in their Outlook Calendars!! For this issue, I will have to ask our users to copy the invitation info via the "Copy Invitation" button then create another meeting request from Outlook before pasting the info to it. This is a hassle compare to using Outlook Plugin.
Please include this feature-request to the coming builds!! Having it will make our users here happy. Thanks,