system
Given the following post, respond as if you're commenting on Reddit:
human
Is there any language which is truly (or almost completely) gender free?

One for which there is no modification of adjectives for gender (like there is in Romance languages), a single gender pronoun, and no assigning of gender to nouns (not only lacking masculine and feminine nouns, as there are in Romance languages, but also lacking nouns which specify for gender, ie, having a single word for "sibling" instead of "brother" and "sister"). 

If there is, has there been any speculation as to how this has affected the development of gender and sexuality roles in the society?
gpt
The Uralic languages (which include Finnish, Hungarian, Estonian etc.) have very little gender-related grammar. No gendering of nouns, pronouns or adjectives.

Finnish does have gendered kinship terms: sister/brother, aunt/uncle, mother/father and so on. Additionally, there is a feminine suffix  *-tar/tär* for certain nouns that refer to people: *kuningas* 'king' > *kuningatar* 'queen'; *tarjoilija* 'waiter' > *tarjoilijatar* 'waitress'; *perijä* 'heir' > *perijätär* 'heiress'. The suffix is, however, very formal in style and no longer particularly productive. It mostly occurs in existing formations only, and indeed words like *tarjoilijatar* appear quite archaic to most speakers.

That's about it, though.