making State-Mandated Girlfriends into reality

https://knowyourmeme.com/memes/state-mandated-girlfriend

birth rate so bad the govt encourages dating

The stable matching problem has also been called the stable marriage problem, using a metaphor of marriage between men and women, and many sources describe the Gale–Shapley algorithm in terms of marriage proposals. However, this metaphor has been criticized as both sexist and unrealistic: the steps of the algorithm do not accurately reflect typical or even stereotypical human behavior.

https://en.wikipedia.org/wiki/Gale–Shapley_algorithm

Is this an unusual algorithm to use on a dating app?

I ask that question, but I understand it's probably not answerable. I'm sure the algorithms in place are immense complicated things and definitely proprietary. So unless some Lemmy user works for/worked for one of these apps, I don't think anyone will really know.

Is it open only for Singaporean people?