RE: Platonic relationships being recognised under the law. File under: be careful what you wish for.
This happens in Poland: a household of unrelated adults can register itself as a special status. The benefits are limited and mostly tax-related, but it is a “thing” and yes I guess it can provide limited and household-specific social acceptance - while forestalling political and economic acceptance and excusing social conservatives from acknowledging the broader need for such.
Poland has no legal same-sex marriage, no same sex civil partnerships, transitioning is MTF or FTM only and requires a successful court case and medicalisation with a typical timeframe of 5+ years, and women’s rights are under sustained attack.
But yay! One can be what random people in the UK/Anglosphere call “genderqueer”! I’m off to tweet congratulations to Andrej Duda; I bet he doesn’t know the English word for his policies but will love to use it to his advantage.
(Please excuse my cynicism, any actual feminists. It’s just really exhausting reading this nonsense.)