My partner is explicitly non-binary and sees gender as a problem to be solved.
I have kept my birth assigned gender because I see gender as a superfluous exercise, not worth wasting time or thought on.
I don't really identify with masculine or feminine personality traits, and I have no preference for pronouns.
Just as gender is a spectrum (not a binary decision), the amount you care about it can be too.
If fully transitioning sounds like too much effort, just do the bits that make you happy. If shaving your hair, or trying makeup for the first time makes you happy, then that can be enough.