You can issue commands to singular services or group them under an alies if needed.
But I have around a dozen stacks atm and I never came across a situation that I wanted to trigger an *arr stack restart with Jellyfin’s. They’re pretty much unrelated and independent services from an operational view.
I’m more talking about pull, up -d. It’s convenient having it all behind a single command, unless there’s a special need to have them separated
Jellyfin and Miniflux are internet facing because it would be turbo annoying otherwise to deal with them