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AI is ruining the internet
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
If those you wish to have a video call with already have each others phone numbers then Signal is a option. It supports up to 40 participants. Available on Android, iPhone, Windows, Mac and Linux.
Signal has other great chat/messaging features too.
Also a unofficial community on Kbin
Oh,forgot to mention there is support for sharing screen and separate window on desktop. Unsure about mobile clients.