Is it better to have multiple connections using the Stratum protocol, or is it better to have a single connection to the entire proxy for the pool?

I’m currently trying to code my own BTC proxy mining pool, which should handle at least 20,000 workers, but I still need some information to build it properly.

My main inquiry is about the proxy pool and the TCP connection between the pools.

Should I open a connection between the proxy and the pool for each worker, or should I create a single connection for all workers on my proxy?

I think the best option in my case is the second option (if I open 20,000 connections with the same IP, can I get blocked?). However, this means more work needs to be done and understood.

So how do we manage the high level of difficulty of grass and bodyif?

thank you for the reply. Please share any interesting links about this.