In “The Dispossessed” the protagonist, Shevek, is bisexual and he has a brief homosexual relationship with a friend of his before settling with his wife Takver. It is explicitly said that there are many homosexual couples in Anarres, although oddly enough the only homosexual couples we see are male

In “The word for world is forest” it is said explicitly most men in Earth are gay and misogynistic, seeing women as just useful for reproduction. It is explicitly mentioned that most men in the army have sex with each other

In “The left hand of darkness” there is a species where each individual can be male or female, and they can’t control it. At one point the main character (who is a regular human man) considers having sex with one of these aliens. I don’t know if that could be considered gay, but it sure as hell aint straight. If we consider the narrator as unreliable, it could be argued they did have sex

There are probably more examples in her work, but I don’t remember them all. Maybe Ged had sex with men most of his life because when he has sex with Tenar he mentions explicitly it’s his first time having sex with a woman, but not necessarily sex in general

You get the point, Ursula loved to include homosexual characters in her books, and she was very explicit about it most of the time

How did people react to her books at the time?

Also, did she ever include a female homosexual relationship? If she didn’t, does this tell us anything about the historical context in which she wrote?