[uaas]

Can you link sources for those Google numbers? I am asking because I have seen smaller platforms, but still with millions of users, and the avg. RPS was around 10-15k.

Nginx is quite scalable with the right configuration and hardware, but most of the times you want to use more instances of it to scale to this kind of traffic.

Modern, Envoy based proxies are quite popular, and can scale better with better performance, mostly due to the fact it’s written in C++.