If it's only a frontend how does "we'll end our support for third-party apps, including Pidgin and Gajim" make sense? Just coinciding? That's what made me assu

If it's only a frontend how does "we'll end our support for third-party apps, including Pidgin and Gajim" make sense? Just coinciding? That's what made me assume it was a whole stack rather than interface to a backend.