I’m learning backend but i’m not good at DevOps. Is it good thing to use one main NGINX instance for all applications on the server and one NGINX instance for every application where we have SPA frontend (that need to be served by reverse proxy server)? I’m not sure whether it is a good idea to connect one reverse proxy to another in terms of performance but I don’t see how to make it easy when we have a few application on a server, that have compiled React SPA application and other services.
P.S: I was taking courses about Docker and NGINX but I don’t know any best practices in terms of building complex infrastructure. I would be glad if you recommended any literature on this topic

That’s scheme how I see it