I can't speak for everyone, but for me personally, yes I feel like art is less interesting now. Over the past couple years or so I've found that I'm less impressed by art that I see online.

I'm not an artist, and I'm not someone who seeks out art to appreciate it. I'm just talking about art that I scroll past on the internet. I find it less interesting now. I assume that it's all AI generated, and if it's not, I figure it might as well be. It's just not interesting to me anymore. The image generated by a prompt is no more interesting or thought provoking than the prompt itself.