I'm curious what social video software is being used
in this news clip...???

https://www.bbc.co.uk/news/av/uk-51995799/coronavirus-bar-mitzvah-celebrations-online

We tried using skype on one to one calls with with my mum a few years ago,
but gave up because of too slow unreliable broadband/mobile data connections..
[and relatives sat with mum not able to work the technology..]