The main difference between Facebook community pages and groups lies in how they get used. See, Facebook groups can be private or public, which makes them an intimate and personal space for businesses to engage with the audience.
On the other hand, Facebook community pages are open to anyone. They are a more public and broad-reaching space for businesses to build their brand and reach a wider audience. They are more focused on sharing information about a particular topic or interest and can help develop a sense of community by connecting people with similar interests.