Oh yeah, Hangouts. I had honestly forgotten its name. Niantic being owned by Google (at the time), Google+ and Hangouts were the core organising platforms for the Ingress community, back in the day. I think Telegram got used for a bit even before Hangouts actually died, but the continuing lack of support from Google definitely didn’t help.

Then they took features away. Then they took more features away. Then they took the app away.

And during that process they created Allo (basically DOA), Duo (now dead), put chat into the YouTube app (now removed), and more…