They almost certainly do via the web interface, as I do (and lots of others).
It works in general, though for some reason Teams via a web browser will often have problems seeing the microphone, or getting sound, even though every other web page using mic/speaker will work. And some other issues, like not showing a shared screen without first going to chats and then re-expanding the shared screen.
When aware of all this it generally works ok.
The actual MS client for Linux is, as far as I know, non-existing now. Or at least not updated. It was anyway always completely useless for several reasons, in particular that it always stayed at 100% CPU.