Technically, you don't really need to touch those Arr applications once you set them up. As others have mentioned, Seerr (merged from Jellyseerr and Overseerr) is probably the only thing you use on daily basis.
You mentioned an app for remote streaming, I assume you know about Jellyfin already. If not, it's like Netflix but you watch your own videos.
Not to blame, but Geoff single-handedly killed this game by placing the teaser trailer under the spotlight. A very unfortunate incident. Of course, the game does seem too bland in this age.