While Jitsi is open-source, most people use the platform they provide, meet.jit.si [http://meet.jit.si], for immediate conference calls. They have now introduced a “Know Your Customer” policy and require at least one of the attendees to log in with a Facebook, Github (Microsoft), or Google account. If you prefer not to self-host Jitsi and be identifiable via your domain, there’s jami.net [http://jami.net] as a replacement for Jitsi. It is a decentralized conference app that requires you to install an app. However, it’s open-source and account creation is optional. It’s available for all major platforms (Mac, Windows, Linux, iOS, Android), including on F-Droid.
What did happen with OpenID, anyway? I remember it being big when Livejournal was a thing.
the biggest problem, ironically, was how flexible it was.
users were forgetting WHICH provider they signed up to a service with, causing a support nightmare and multiple accounts
then there was the issue that all the big players didn’t accept external auth - so google, etc… require their own accounts.