People have tried and failed to make the “one arr to rule them all” but the current stack is pretty lightweight, stable and mature so it is better to just install them all in containers then have some kind of frontend and request system in front of them for users and admins.
I use Organizr as a frontend (keeps them all together in one interface and optionally handles SSO across all of them) then I have Overseerr for users to add media without having to give them access to the arrs directly.