I do not miss the random erections!
As a dude, my sexual desire was imminently bound up in my gender dysphoria and my self-hatred for what my body represented. I didn't like it even though it felt amazing and gave me emotional connections to people I loved. My wife—who is still with me, by the way—thought maybe I was secretly gay.
Now I get this low-level simmering feeling like the embers at the bottom of a fire just waiting for someone to ram a poker in there and stir it back up.
I used to think it was a panic attack coming on because it feels very similar to that. But panic attacks don't have this luscious undercurrent in every single breath.
When I lived as a dude, my horniness was very blatant and focused when it happened. This is much different. Instead of it being centered around a specific "appendage" begging for attention, it's a full body hum.
As a dude I still had very strong emotional needs that were completely separate from horniness. That aspect has not changed.
Desire, aggression, empathy, all of our human behaviors are far more than responses to hormones. We are unique, complicated individuals among a diverse population. What's true for one person—what's true for a dozen or a thousand—isn't necessarily true for everybody. It's why gender essentialism is dumb.