Just two cents.
The latest and largest genetic studies on LGBTQ+ sexualities (ca 2019-2023, half million people involved) have made clear that actual genetics play a lesser role which on top of that is indirect, ie no gene(s) related to sexuality per se, but rather to general tendencies like risk-taking.
There is no single gene responsible for a person being gay or a lesbian.
That’s the first thing you need to know about the largest genetic investigation of sexuality ever, which was published Thursday in Science. The study of nearly a half million people closes the door on the debate around the existence of a so-called “gay gene.”
In its stead, the report finds that human DNA cannot predict who is gay or heterosexual. Sexuality cannot be pinned down by biology, psychology or life experiences, this study and others show, because human sexual attraction is decided by all these factors.
There is no ‘gay gene.’ There is no ‘straight gene.’ Sexuality is just complex, study confirms
So really there are many and diverse ways sexuality plays out and evolves (like any sufficiently complex social behaviour) and there are both social constructs and choices to be made, almost all over the place.