Get video stream of video call parallelly to play it separately in a player

So, when there is a jitsi room, there must be a video stream that’s generated and played on everyone’s end who is into the room.Can we get the stream link and play it separately in an html5 video element without joining the call?

Nope those are multiple streams.
There is no such option at the moment. You can check how always on top is implemented in jitsi-meet-electron-utils you can implement it the same way.