Great summary. I don't know what the original comment meant, but it does seem like boys are actually doing more of the stuff that needs discipline.
As l recall, boys misbehave by being visible and acting out while girls misbehave by plotting and scheming. When I was bullied in school, it was 100% girl-powered, but not visible. I prefer the rambunctious kind of misbehavior to be honest.
I know anecdotes aren't worth much, but when I was in primary I got ticked off at a boy who dropped grass down my shirt. I tackled him and pinned him to the ground, stuffing huge handfuls of grass into his shirt. He was hollering and the playground mom came over. It was his mom. She said "Travis Sheehan*! Get to the principal's office!" As he went off, she said to me "I don't know what he did, but he probably deserved it."
I always thought that was weird. Although he totally did deserve it. Lol.
* not his real name
I do think it's likely that girls are more likely to do subtle bullying while boys are more likely to do obvious bullying, with the latter being easier to discipline. Girls typically bully by social exclusion, gossiping, etc. Boys also do a degree of that by means of forming hierarchies around sports abilities or other activities.
Due to the type of special classes I was in through school, I largely avoided bullying, because students in those classes did little or no bullying, and when I was in extra-curricular academic groups like mathletes or reading olympics, there wasn't much bullying there either. I was sometimes in regular classes but there wasn't much action there, and riding the school bus was usually a pretty obnoxious experience. I do admit there were a couple of times in middle school for a few girls where I kind of subtly put another girl down, and then was genuinely nice to her later, as kind of social positioning for dominance alpha/beta Discovery Channel type of stuff.
I did see a lot more physical fights between boys than girls, although I did see one instance of a high school girl and a boy fighting each other, with the girl being the clear aggressor and the boy just defending himself.
I pushed an older boy around at a bus stop in middle school once because he and several other boys were hurting a younger boy, and as I recall I pushed another boy down at recess in elementary school because the same younger boy (he was a neighbor of mine) was being bullied by him.
I saw an instance in middle school where an older boy was walking down the hallway and he passed some younger boy and purposely knocked all the books out of his hands. The older boy's girlfriend berated him and then helped the younger boy pick up his books. There was another instance where a bunch of boys in high school were pushing around some other boys in the lunch room, and one of the aggressive boy's girlfriend kept trying to get them to stop.
A friend of mine was challenged to meet at a place to fight by another boy once in high school, and he asked me to come to the fight and watch, because he was worried that the other boy would bring a few people and hurt him, and he wanted a witness or someone to deter the boys from doing anything other than their agreed upon one-vs-one fight. So I went to that, they fought and nobody was hurt too bad, and then we left.
There was another instance in coed gym class where a huge boy got another boy in a headlock and several boys and girls were trying to convince him to let him go. There were a lot of fights in gym class in general. The male gym locker rooms regularly had a lot of stuff stolen from them while the female gym locker rooms had a lot less of that. Some boys would give valuable stuff to girls to keep in their backpacks to reduce the chance of theft.
There were some physically aggressive instances between boys and between girls at some parties. There were also occasionally fights at the local mall on Friday nights, because for some reason Friday night was when several dozens of goth kids went to the mall and most of them were fine but a few boys would fight each other or other people. I mean, there would be like 80 goths in one big group. Sometimes I would go to a movie at the mall and be like, "Oh crap, I forgot it's goth night. We should use the other entrance." I was good friends with one of them in homeroom class though , and I knew another one from German class.
Public school can really be like a zoo at times.