I'm sure everyone's experience is different, but in my case it felt like finally unlocking emotions that I hadn't had proper access to. I was a very angry teenager pre-HRT, but once I started E, the vast majority of those angry moments became times when I'd cry instead.

Not sure, hormones are weird and go all over your body including your brain. Even cis women taking hormonal birth control get more emotional, or cis women in perimenopause/with PCOS on HRT get more emotional. Estrogen really does alter some stuff in your brain chemistry and turn on the emotional granularity button and turn on the crying threshold dial way down.

Trans men on HRT talk about how they lose some ability to differentiate emotions and they get way angrier way faster - also hornier, but whatever.

they are subtle though, it might take some time to really notice anything