That was never a thing: Pidgin & the rest had to write their own implementation for many of those protocols, starting with AIM.
There was a tiny period, somewhere in 2006, when many services were XMPP, maybe even federated, but due to the lack of good clients - compared to skype -, it never manifested as good as it should have.
There are now many nice XMPP clients, but the big players now all moved into proprietary territory.
There was a tiny period, somewhere in 2006, when many services were XMPP, maybe even federated, but due to the lack of good clients - compared to skype -, it never manifested as good as it should have.
There are now many nice XMPP clients, but the big players now all moved into proprietary territory.