I’d think no. This is barring someone from using an app entirely. But when it comes to dating, everyone has a preference of gender, even if that preference is “no preference”.
And dating isn’t discrimination. It’s picking a person that you want to spend extra, and frequently intimate, time with. It’s a billion subconscious factors that your brain interprets as love, affection, or whatever other emotion your brain wants. Can some of those factors be discriminatory? Sure.
I like men and women and everything in-between and around, and I’m sure I have plenty of biases and discriminations of my own, but that’s not enough to outright call all dating discrimination