philosopher, without being too offensive, perhaps this is the reason that Chazal said that Gemoro should be restricted to men, and not women. Nothing against women, by the way. My wife is a woman, and lehavdil my mother a”h was also a women. Coincidentally so are my daughters and a number of my grandchildren B”H. But I am old-world, and I believe that this type of discussion should be kept to those who can, and are encouraged, to learn gemoro.
In answer to your inability to find the Rif, it seems from what you wrote in your post that you have a misunderstanding. The Rif on the gemoro is Rav Yitzchak Alfasi who was one of the early Rishonim. The Rif on the Ein Yaakov is a Rav Yoshiya Pinto of the 17th century. He will likely be found only on the Ein Yaakov, although I can’t be sure of that. He will DEFINITELY not be found in any regular edition of Shas.
As to Sefaria – a word of warning. I can’t remember where, but I have seen it quote xian sources in relation to their beliefs, and not to refute them. So although it is likely not relevant here, just be careful with that site.
(I just googled Sefaria and christianity and it came up with some “questionable” material.)