On Filioque textual addition (not theology)

[mardukm]

I have often heard that Eastern and Oriental Catholics added filioque to their Creed to “fit in” with the predominantly Latin environment in which they found themselves, especially in the Western countries.

I am wondering — what about the Churches in the mother countries (i.e., not in the Western countries)? Was filioque added in the Liturgies there?

Blessings