She went to high school in a poor area of the US south during the 1970s, so her school probably wasn't good. She's told me stories of how she was bullied physically (mainly by boys, but girls bullied her physically too), and how she's glad it's not like that "nowadays"/"anymore." Even kids who weren't bullied still got into fistfights. It probably didn't help that corporal punishment was routine at her school.
I went to a magnet high school in a high income county in the US. I graduated in 2021, and I personally didn't see or experience any bullying. Students were generally pretty nice and left you alone if they didn't like you.
From reading this thread, I realize the difference probably comes more from the areas we grew up in, but I had attributed it to bullying being mostly eliminated without thinking much about it.
Many have given anecdotes, but we need statistics in order to get an accurate view of the whole country. According to the National Center for Education Statistics, 22% of US students ages 12-18 reported being bullied, while 5% reported specifically being pushed, shoved, tripped, or spit on.