The average follower has very little influence on the religion's core beliefs. 0xΩ could work differently, because users could have a say.

Follower Beliefs affect every City where the Religion is dominant, regardless of who owns it. Some, like Choral Music, Divine Inspiration, and Warrior Monks, lean the civ toward Cultural or ...

Fans that are dabbling in religion can find details on Civilization 6's best Follower, Worship, Founder, and Enhancer Beliefs here.