Okay I use plain Nginx at home and at work mostly. Caddy (or its underlying Go runtime) has some performance regressions with HTTP/2 back then. Not sure if it has been fixed or not. Traefik is more container (docker/kubernete) affinitive imo, though I know it can be configured to function just like Nginx and Caddy.
P.S. I stopped for a second thinking what NPM you are referring to… (Isn’t that Node Package Manager lol)