How to stream Zoom conference insie Unity?

Hello, I wanted to know if there is any asset to transmit Zoom conferences inside Unity in realtime.

Unless you are talking about streaming your desktop, you are likely going to have to look into the Zoom API. They have an API both for having a Zoom client, or just using their Video/Audio services.

Client API

https://marketplace.zoom.us/docs/sdk/native-sdks/introduction/

Video API

https://marketplace.zoom.us/docs/sdk/video/introduction/