Google is permanently deactivating Talk (also known as GChat), the instant-messaging service that you probably haven’t used since 2007 (via Android Police). Although Google transferred Talk users to Google Hangouts in 2017 – another of their now-defunct IM systems — third-party XMPP clients like Pidgin and Gajim could still access it.
But Google will cut these last lines of life support on June 16th — three days from now. In a message on Talk’s support page, Google says it’s “winding down Google Talk” and will no longer support third-party apps, citing its initial announcement in 2017. Users who try to sign into GChat after the 16th will see a sign-in error. If you still want to use Pidgin through Google services, Pidgin recommends using this plugin for Google Chat instead.