This is exactly what I do. When it comes to your regular backend business server I write stateful multithreaded monolith in C++ sitting on the same computer as the database hosted on some multicore server with gobbles of RAM (those are cheap now). Performance is insane and is enough to serve any normal business for years or decades to come.
So it does not work for FAANG companies but what do I care. I have the rest of the world to play with ;)
So it does not work for FAANG companies but what do I care. I have the rest of the world to play with ;)