It's a long story with the Linux Teams client but the newest version is juts plain broken! https://microsoftteams.uservoice.com/forums/555103-public/su...

There's a new version? The only version I've been able to find is an old one that isn't linked anywhere, I had to use a search engine to get at the download page. The only one I still see available right now is for windows.

If you access this page from within a Linux client, you will be offered a Electron based client (.deb and .rpm - Package) https://www.microsoft.com/en-us/microsoft-teams/download-app...

But the current version is not really usable as described here:

https://docs.microsoft.com/en-us/answers/questions/185092/ca...

Guest Login in Microsoft Teams on Linux seems to be broken for everybody now and Microsoft is not even working on a fix yet.