I and a colleague have been experimenting with Zoom recently.
This is with the free version of a big US video-conferencing program on desktops. They also do an app version for those with mobile phones.
We selected this to work with because it has several versions which communicate between different operating systems, whereas most of these type of programs support only Windoze. So if you have a Mac, you download the Mac version, Windoze the Windoze version, Linux the Linux version, etc.
For example, we were earlier today communicating between Mac and Linux systems, with no problems, once we had gotten used to the interface a little. We have a ways to go before we become proficient, but it's great fun learning, and better than MS Skype, which tracks and uses your information, probably for adverts, if no worse.
Main reason for putting this up here is that it might be useful for anyone self-isolating to be able to see and chat with their friends and relatives, from the comfort of their own PC or phone, or for colleagues not at the workplace at the moment, to share ideas, etc.
Lots of info on how it works here; you can also google 'working in Zoom' to get more info from outside the company.
Some of the freaks on here could maybe link up and see each other and.... No, no, maybe not such a good idea...!