What would you propose, then?

But locked in a way where nice third party clients could still interact with them. I never used official clients after a time.

That seems to have gone away.

400/F/krynn oh sorry i was in the red dragon inn room :3

I do 1:1 videocalls on XMPP. Quite some clients implement that now. But there were no videoconferences until very recently. That's changing, though. See Movim right now, for example.

Main 2 issues with XMPP are inconsistent clients (in terms of GUI but also features wise) and the incredibly, astonishingly, ridiculously sloooooooooooooooow evolution of the protocol through the XSF. Nothing can get in there until it's "perfect". Clients devs are reluctant to implement things until the extension is stable. And the best part is this approach hardly work: the best way to figure if something works is to deploy it in larger and larger scales and improve it on the way as you identify corner cases you didn't think about. Not to review the description for months/year until it qualifies as literature...

Are video calls really that important? I almost never do that.