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Jitsi

Zoom and Google Meet are proprietary software that have limitations in their free versions and do not provide access to their clients’ source code.

But there is an alternative — Jitsi, which is an open source videoconferencing service with similar functionality to its proprietary counterparts.

• Official project website

Recommended official clients

• WEB interface: available after setting up the SelfPrivacy server, at https://meet.YOUR.DOMAIN.

• Android

• iOS

• Flatpak

• Also see the builds in your distribution’s repositories.

Features of Jitsi

• Does not require registration;
• Uses avatar from gravatar.com if you specify mail (may violate privacy!);