I think that's definitely partly to blame- kids in high school now missed out on in person middle school, which is one of the most important ages with social development, especially around mature conflict resolution. That combined with how limited schools are with what we're allowed to do to discipline misbehavior has a LOT of kids feeling like they can do whatever they want and not have any real consequences (and for the most part, they're right).

Little of both at my school. We definitely have a core group of kids that are constantly wandering in the hallway, cutting class, and meeting up to fight, but there's also been a lot of random kids who are normally fine that get involved. It used to be that fights would be over big issues that bubble over in a planned way ("meet me at the flagpole/bleachers/parking lot" type fights) but it seems like now, these fights are breaking out are over basically nothing and are instant reaction kind of fights - like fighting is first response, plan A when someone feels disrespected even in a small way instead of "resolving" an ongoing feud (does that make any sense lol)

I'd imagine the same thing that's going on at most high schools... constant fighting in the hallways. At the school I work at on the south shore, we have fights almost every day. It's exhausting, like the whole school is in a pressure cooker waiting for something to trigger an even bigger explosion.