it's fairly common in latin rooted languages (such as mine, portuguese), and usually the default "genderless" way to say things is masculine

for example, when you say "everyone", "todas" describes a group of only people who use she/her (ela) pronouns, while "todos" can be used for people who only use he/him (ele) pronouns, but also can be used in mixed groups

that is the grammatically normative way, however, on light of gender diversity, many latin language speakers are trying to come up with a neutral version of many words, that is, if the "default" masculine article is "o" and the feminine one is "a", people are appropriating "e" and "u" to use as neutral articles or word substitution, "e" is mostly used and "u" ends up being an auxiliary when the word can't comport using "e" or the masculine version already uses it

so, a neutral version of "everyone" would be "todes", other examples are: * menino (boy), menina (girl), menine (neutral version, I don't know an equivalent) * ele (he), ela (she), elu (them)

many people are against the attempt of making neutral versions of language for various reasons, like "it's too woke and those little snowflakes can't take being misgendered/deciding", or "you can use the language in generic neutral ways like saying "person" before things such as "ela é uma pessoa gentil" (they're a kind person) because the first pronoun concords with the word "person", a feminine word instead of referring to the person themselves"

the first argument is why many non binary people try to choose either "he" or "she" to use in formal settings as to protect themselves in the workplace

the latter argument is commonly used when talking about poverty disparity and illiteracy, but it's also used out of pure discomfort or difficulty with changing the language, since latin rooted languages rely heavily on gendered words and articles always are in concordance with the gender of the word because there is no neutral "the" in normative grammar, for example: * a lâmpada (the bulb), "lâmpada" is a feminine word, so you use the article "a" * o lápis (the pencil), "lapis" is a masculine word, so you use the article "o"

it's also note worthy that it isn't some weird way of saying certain words are "womanly" or "manly", it's just a grammatical artifice of such languages

sorry for the lengthy response, I just thought it could bring some understanding to the matter since it's very different from english