Yeah, Nicaea was just the "filioque" controversy, no?
New term on me... but Google says "Yes".

(I add this more for peer review than instruction)
It seems that the Arian stance that Jesus was
created rather than literally
of God was the major impetus for the council.
The council also set a general stance for proper Christian faith rather than any textual editing.
This, in turn, set the stage for an eventual textual canonization 60 years later in Carthage.
Admittedly a very shallow description, but I think I've got it now.