Does "By God Alone" DLC add any content for Orthodox church?

[tHWG]

From the description it looks like mostly Catholicism content.

[Darklordnj]

Mostly Catholicism, does add situations for early Christianity pre-schism

[Aetini]

There is a mechanism for the schism and the Orthodox for sure can interact more with it than like...Taoists. Politically the Orthodox are represented as a massive clerical region and their own rite.

I'd say the core DLC mechanics are split between being Christian period & being Catholic in particular (at least until primary rite of the church gets changed, I think is how it works)