Interestingly one of the things that came up earlier in the thread re: adoptions in Nigeria was that lone woman could not adopt a boy and a lone man could not adopt a girl.
Same sex relationships are not legal in Nigeria but in a country where they are, you could certainly make a case that a gay male couple would be better suited to adopting boys and a lesbian couple better suited to adopting girls (weirdly tho, I seem to recall that women using donated sperm are more likely to conceive boys, something to do with y sperms behaviour being better suited to IUI than x sperms? This means lesbians are statistically more likely to be mothers of boys than mothers of girls).
Of course, in a carefully vetted adoption scenario a social worker might encounter a gay male couple with lots of close knit sisters/mothers young enough to be around for a good long time and vice versa, lesbians with very present brothers/dads and be satisfied that an opposite sex child placement will be perfectly fine (single mums of sons and widower dads of daughters have to muddle through as best they can, after all).
However, in the luxury-surrogacy baby-buying world commissioners can just engage clinics in countries that permit embryo sex selection, and have the designer-dress-up-dolly-babies -of-their-dreams
They can pick a pink/blue embryo to match the pink/blue nursery 🤢