Yes indeed. HE starts and finishes the good work in you. Salvation is, from beginning to end, in HIS hands. He doesn’t do it through a false gospel. All those God the Father teaches will come to Christ and be saved. (John 6:45). Every single person God purposed to save will be saved. Every single man given to Christ by the Father will come to Christ and be saved (John 6:37).
So, since John 3:16 is not a false gospel, then Jesus saves those who believe in Him through that word (and others).
Whether they’re Swahili, Arab, Zarathrustrian, Islamic, Rostafarian, Mormon, Baptist, etc. when they believe in the gospel.
And then God finishes the work. That’s what I believe.