Google voice voice calling

Got this message on my Hangouts on my Chromebook...

Yes, this has been coming for a while - transition away from hangouts/hangouts dialer.

Someone with more googlefu than I will probably link to google postings/announcements about it.

For free "civilian" individual users as I understand it the GV app and "chat" will take over for hangouts & I think I read that hangouts or parts of it will be repurposed, aimed at businesses.

ETA -

I'm unsure if obihai devices will be affected at all but I think obihai never relies on anything "hangouts", just G Voice.