Zoom Will Make End-to-End Encryption Available to Everyone
Be aware of the impacts of enabling E2EE before enabling it to make sure that users will be able to participate in your meeting. Zoom's white paper on their E2EE implantation (https://github.com/zoom/zoom-e2e-whitepaper/blob/master/zoom_e2e.pdf) documents meeting UI changes as well as key management and verification. UI changes include: participants cannot join before the host, participants must run the official Zoom client; browsers, legacy Zoom enabled devices and PSTN dial-ins are disabled.
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Infosecurity Magazine: Petitions Demand Zoom Changes End-to-End Encryption Stance