Transmission limits and management of "live stream"

We are trying to build a real-time broadcasting system using ‘live stream’.
The condition is to create and broadcast 10,000 simultaneous transmissions on average and 1 to 4 live streams per user.

In the worker, we will create, delete, etc. with the stream api.
You can get a list of all streams by API Token and Account ID, but I don’t think you can manage them by user.

I’m trying to use KV to store and distinguish stream uid for each user. Is this the best?

And can more than 40,000 simultaneous transmissions be possible in a live stream?
What are the limits, if any?

@frontplugs I noticed you wanted to remove this topic - do you still need help here?