Pauline Narvas wrote a great community piece asking a deceptively simple question:
What job is community being hired to do?
Her answer maps community across the GTM funnel: awareness, acquisition, activation, retention, advocacy, and expansion.
I think there is a CX version of the same question:
What does your customer experience become capable of when community is connected to the rest of the system?
https://www.beegagliardi.com/writing/community-is-the-routing-layer