Ask HN: Would you recommend such software in your org?

Hi, I'm wondering if I'm the only one that feels uneasy with MS Teams, Slack or Google Meets. I'm thinking of building an open-source communicator: 1. Zero–knowledge server for maximum privacy: - users have no passwords, - server doesn’t know who the sender is, - server is unable to see a message content 2. A client software where every message/call must be encrypted and sender/caller is verified. 3. Can be self-hosted or used as a SaaS offering. 4. No lock-in. Designed in such a way that migration to other server does not require cooperation from the current server’s operator. Client software is server agnostic. 5. Fully open source (probably GPL). 6. No central authority that can disable account or deny service. No global central point of failure.