I transitioned to male 15 years ago, I was already well into adulthood by that time so had experience to compare. 100% agree with the post. It was night and day. (I'm not in Stem; just generally in life.)
The weirdest thing was some of the individual people who changed how they treat me over time, for the better. After I started transitioning. Its cool they are so trans positive and affirming I guess. But if you can turn that shit on like a tap why not do for everyone?
Now as a man I struggle to notice when I'm getting special treatment. Even with my prior experience. Sometimes I have been oblivious for years until I finally clocked it or it was pointed out by a woman.
It has made me much more respect cis men who manage to have a keen eye on sexism. Especially those who are masc presenting. It is so easy to not notice. It's very comfortable. People are polite. You have good luck. To all the guys commenting here that it doesn't go on around them: it sure as fuck does.