A little clarification on why Neeko being a lesbian is NOT progressive.
Make an openly gay man character: outrage because a lot of straight men would have an issue with it.
Make an openly gay woman character: straight women don't care, gay men don't care, lesbian women like it, straight men like it.
Do you now understand why it's actually easy to find a lesbian or a bisexual woman in a work of fiction (videogame, tv) but it's much much MUUUUUUCH rarer to find a gay man in a work of fiction?
Keep in mind Riot went out of their way to make sure Taric is NOT openly gay. They also pretended to retcon Varus into gay, but made sure to point out it's only an irrelevant lore comic most people didn't read, and it's not really Varus being gay but only the men who once were him.
Do you now understand why a lesbian character is nothing special and you actually always see them in media? An openly gay character is what would be progressive.