When I was in EY on kibbutz twenty years ago, a recently converted young woman told me that she had been taught to say “…shifcha” (at the time I didn’t ask about ‘goya’)but after that I only saw it as an alternate in a new “progressive” siddur.
Different question: when do you say Elokai Neshoma, after Netilas Yadayim/Asher Yatzar, or after Eilu Devorim? We were taught the latter but my kids are taught the former, the way it’s printed in their siddurim.