As for Microsoft Teams, they claim video conferencing and desktop sharing is not supported in the browser on Linux, but spoofing the user agent enables them.
They also do not provide a standalone app for Linux, despite the fact it's an Electron app, yet here is the standalone client supported by one individual that works perfectly.
You wager they'll shut down the consumer facing portion too? It's a fairly decent brand. Although I guess with VoIP so ubiquitously free (WhatsApp, etc) I'm not sure how they monetize these days...
It's a well-known brand but Microsoft have dragged it through the mud since they acquired it and among those I know it now has a reputation for being extremely unreliable. They might want to retire it rather than fight to rehabilitate its image.
They also do not provide a standalone app for Linux, despite the fact it's an Electron app, yet here is the standalone client supported by one individual that works perfectly.
https://snapcraft.io/teams-for-linux
It really makes you think!