This has multiple layers i can answer on so we’re going to break it down into pieces. First, you and i are queer, so we’re allowed to call anything we want “Gay” if it makes us happy. So yes, it’s gay, i love seeing yeens kiss
Now what if there’s a third party in the conversation whose queerness is ambiguous or undefined? Now we have to consider the neutral standpoint of gayness, in which we need to clarify a difference between cishet joy and queer joy. In this case we need to ask, are the hyenas in question a cishet pairing? If so, then it is surely not gay, right?
But in there I’ve tricked you, as in fact Hyenas have biology which for years tricked scientists into thinking they were hermaphroditic. I would argue hyenas are an intersex icon, and therefore inherently incapable of being cisgendered in heterosexual pairing.
So yes, all hyenas are gay when they kiss