I used to use pidgin years ago before social media ruined the internet as a central place to message people across different services. I didn't know it was still going in the social media/walled garden age.
Yeah we're still here and trying to get an experimental pre-alpha release of Pidgin3 out by the end of the year. Unfortunately basically everything had to change to support modern chat features, so initial protocol support is going to be very light.
Former Trillian user here. It all went to shit when AOL started the AIM Wars, and then Trillian gradually changed from cool to enshittified. It was an awesome time when interoperability was a thing, though.