As Amazon becomes the latest platform to push an ad-supported tier, TV writers greet this retro model with frustration and, in some cases, disdain: “I thought 'Nine Perfect Strangers' with commercials was horrible,” says David E. Kelley of his Hulu show with breaks.
I’m not really sure what you mean by “groups” of profiles, but you can definitely set up multiple different users on Jellyfin
I wonder if what they’re asking for is some sort of RBAC? All members of house A can all access content A and cannot access content B. But each individual retains distinct viewing history.