My company uses Skype for business(Lync) for internal communication. Unfortunately the official software is not available for Linux which prevents me from switching to Linux on my corporate machine. I know there is a plugin for Pidgin to use Lync. I wonder if anybody tried to use it long enough to tell if it is good enough. I know that the official Mac client is much less stable then the Windows one.
I've also used Skype for Business (aka Lync) using the Pidgin plugin on Linux, which worked fine for chat and files.