Another thing that has changed in the last 10 years this thread has been active (although this change has been building for decades) is that it's now super easy, almost trivial, for talented people to make music. The time, money and effort needed to produce a really good song is a small fraction of what it used to be.
Case in point, this guy likes to make videos on his youtube channel where he creates a song with the help of his live chat audience in the span of just a few hours. It's just vocals, guitar work and software. Often they turn out to be keepers and worthy of rotation.
Here is where he wanted to make a song in the style of Slipknot. Definitely something that could have turned up on any Slipknot album.
And here he wanted to make a Nu-Metal song that might have been played on the radio in the 2000s. Sorta Linkin Park/Disturbed kinda thing.
Obviously it still takes a degree of talent and mastery, but perhaps even that will one day be trivial with the help of AI. I think there will be a day where everyone just makes their own highly self-styled music and bumps it in their cars and homes. Concepts like "pop star" and "song of the summer" will become antiquated. Music will become a much more individual experience.