I think there’s a distinction that can and should be drawn between descriptors and labels. Most people fit the descriptor “cisgender” but you’ll be hard-pressed to find someone using it as an identity label.

Likewise, looking at definitions, non-binary genders are usually included under the trans umbrella, but many non-binary folks, myself included, don’t necessarily use trans as a label. If someone is talking about the trans community, I still relate and feel included in the conversation, but I don’t use the word as a label for myself.