I’ve noticed that a lot of musicians hate listening to their earlier music. For one thing, they’re probably sick of it from playing it over and over, night after night for years. Then, like most of us (I hope) they’ve matured over the course of several decades and see their youthful selves and music as relatively immature compared to the people and artists they are today. I remember John Lennon saying as early as 1968, he couldn’t stand hearing his own music even from just 3 or 4 years before.
But there’s nothing worse than hearing an artist dissing your favorite song by them. Best to just keep your thoughts quiet.