Signal, a messaging app focused on privacy, has introduced new video call features to compete with popular platforms like Zoom and Teams. The update includes a "Calls" tab for managing links, reactions, and call history, as well as features like hand-raising questions and reusable links for recurring meetings.

Source: https://techcrunch.com/2024/11/12/signal-gets-new-video-call-features-making-it-a-viable-alternative-to-zoom-meet-and-teams/