Can someone please help me out and find and link me the study from a couple of years ago that showed how only same sex attraction, when the male cant become attracted to a woman, it has to do with genes?, it was a large study and a first of its kind, maybe from 2016-2019, i am not talking about the big study from 2018 by Andrea Ganna about not finding any single gene that explains sexual orientation.
Possibly https://science.sciencemag.org/content/365/6456/eaat7693.long is what you were looking for? It implicates a few specific genes - the connection to olfaction is interesting (I would suggest it could be fun to look up the vomeronasal organ, terminal nerve, and GnRH). [Alex Reynolds' suggestion of https://www.nature.com/articles/s41598-017-15736-4 is highly useful for those reading, even if it wasn't what you were looking for. https://www.sciencedirect.com/science/article/pii/S0091302219300585?via%3Dihub is also potentially useful]