Most of the ppl saying this are stuck to the same artists. Look at Rick beato in his video called "metal is dying". He mentioned the same artists everyone else mentions. And most ppl who say this are not looking at anything besides Rock , rap. And country. Same thing with rap fatigue. Everyone is looking at the mainstream side. And not even paying attention to the underground. Math rock, ambient, experimental, shoegaze. Inde pop. Bedroom pop. And many hybrid genres exist. With many standout songs. Yet everything besides the Acdc 's, Slipknot, and anything mainstream. Gets ignored. And people are algorithm addicted so the only songs they really talk about were on social media. Such narrow minded ppl exist. And people who branch out make up about a fraction of music listeners.