communication between unity and browser using webRTC

I have a question about the communication between unity and the browser using webRTC. I would like to have another computer B in addition to computer A running unity, and I would like to move objects in unity on computer A by mouse or keyboard operation from the browser on computer B. (I don't want to use unity to unity communication or remote desktop, because I want to accept operations from a third party who doesn't have unity installed.) I understand from this page that sending the camera scene in unity running in A to B's browser is possible using Unity Render Streaming. However, from the video in the link, does that mean that the only thing that can be done from the browser is to change the perspective of the camera? Also, if there is a library that can do what I'm thinking of, I would appreciate it if you could let me know. I'm afraid my English is not very good, so I apologize if I don't communicate well.