In reply to Michael Stark.

@Michael The desktop app is the “standard” Webex Meetings app. Attendees can use the desktop app to join meetings, even if they don’t use the pre-meeting portion of the app. Alternatively, attendees can join meetings directly in the browser through the Webex web app, which gives them the essential meeting functionality with no downloads and nothing to install.

You can learn more about the web app here: https://collaborationhelp.cisco.com/article/en-US/n1pxgbz