We’re pleased to confirm the Teams client for Linux will be available in preview by the end of this calendar year, enabling people who use Linux client at work or in educational institutions to collaborate with others on Teams. Users will be able to install native Linux packages in .deb and .rpm formats.
Thanks!Arijit Roy commented
Teams should have all OS compatible. Screen sharing option should be available in web version.
Please check “Teams/Skype Consumer chat and calling interop” on the public roadmap at microsoft.com/microsoft-365/roadmap?filters.. for updates.Arijit Roy commented
It is required to access public skype contact from Teams. Maintaining 2 things is not a good idea. One more thing, Teams chat member count should be increased(currently it is 20).