How to use GoToMeeting in Linux

I'm using it on Ubuntu 18.04 and in Chrom{e}{ium}. The image is OK but the sound does not work (I cannot use the laptop speakers/mic). With sound on the phone I can see the shared screens etc. but I would call their Linux support pretty poor.

Use the HTML5 version, which runs fine under Chrome, no need to use phone for voice.

Open it at:

https://app.gotomeeting.com

Or if you want to directly open the meeting using the ID:

https://app.gotomeeting.com/index.html?meetingid=<id>

Create Shortcut

You can create a Web App in Chrome, clicking in the sandwich icon, then Install GoToMeeting.

If this entry is not available, you can use More Tools > Create Shortcut.

There's an option on GoToMeeting setup to permit "Web Viewer". If it's checked you can do the entire meeting within your browser, no plugin or standalone required. See the Linux section of the support page.

If it doesn't work with Wine or CodeWeaver (commercial version of Wine), then your only option will be to run a (stripped down) copy of Windows in a virtual machine (KVM, Xen, virtualbox all support Windows guests) or use an alternative that supports Linux (there are plenty of cross-platform java-based, and opensource ones you can install on your own server).