There's things I don't like about Gen Z, but most of it I understand the reason behind it. The not liking rock music thing is too bizarre though. Everyone liked rock music. If you were in grade school in the 2000s, you were liking music from the 70s, Pink Floyd, Led Zeppelin - through the 90s.
It seemed like every generation appreciated rock.
But I've heard that Gen Z does not like rock music. I don't get it. To me that's like "not liking apple pie"; it's such an American cornerstone that it's baffling.
I think of zoomer music as heavily ironic, depressed, and/or hopelessly niche. The days of the country being united around a decent catchy song like Sk8ter Boi are long gone.
Interestingly enough, a lot of the songs I hear at the gym are at least 5 years old and in a lot of cases 10 years or more.
Sincerity is dead. Everything has to be quippy, self aware, or subversive.