XMPP, Discord, Skype, and Matrix.
Edit: Nope. https://github.com/matrix-org/purple-matrix/issues/18
I purely use it as a chat client and avoid most of the more complicated features, since I don't use them.
I certainly have no wish to have five different clients open, many of which not even scriptable when I can have all my contacts in one list.
ICQ is alive and well, and has native clients for most modern OSes.
It got bought out and spun off when AOL were shutting down.