Yes, I think I’ve heard that, say, Coptic church has some traits of ancient Egyptian religion, Syriac churches have more of Judaism in then than in other kinds of Christianity.
I definitely can see that Armenian church has some local pagan and Zoroastrian remnants (more of the latter, I think that’s because during conversion cults of local deities associated with Greek gods or treated similarly to them would be considered the main enemy).
And when I sometimes hear which things Catholics in Latin America often believe, feels wild too.