Webex by Cisco, videoconferencing client

Project information: Cisco recently released a Linux client for Webex, its video conferencing application. It would be great to have it packaged as a flatpak. I imagine packaging would be similar to Zoom since they are both video conferencing applications written in Qt, but perhaps with some different nuances since looking at the debs Webex has some different dependencies.

Name: Webex by Cisco
Homepage: www.webex.com
License: Proprietary
Upstream has been contacted: No

I made an attempt at this here: https://github.com/flathub/flathub/pull/2654