Dear Zoom Team,
We know there is an issue with the audio on iOS webbrowsers (https://marketplace.zoom.us/docs/sdk/native-sdks/web#browser-support). Is there a hope that some update will make it work in the future ?
Thanks for your answer ! 
Nicolas,
Hey @NicoQB,
Unfortunately this is out of Zoom’s hands. Apple have not yet implemented the Audio Worklet API.
Personally I would leave a message on this post on the Apple Developer forum. Hopefully this will encourage them to speed up and add it!
https://developer.apple.com/forums/thread/133683
Thanks,
Alex
Hey @NicoQB,
Thank you for reaching out to the Zoom Developer Forum. I can confirm that the details @alexmayo provided are correct. We are actively working to add support but we are also waiting on Apple to add features that will make this possible.
You can stay up-to-date on upcoming changes here.
Let me know if you have any questions.
Thanks,
Max