What's good or bad is subjective. I've seen plenty of (in my opinion) good AI-generated content. But making such a sweeping statement suggests to me that your mind is made up on the topic.
I strongly prefer local software, but as someone coming from Photoshop who now only does the occasional edit (and therefore can't justify the price), I find Photopea to be a good alternative, especially since it closely mimics Photoshop's interface so I don't have to learn a new UI. Also, your images stay local on your computer and aren't uploaded to their servers.
It's developed by a single guy, which I think is very impressive given how much of Photoshop's functionality it has. I just really wish it were open source (and not a web app).
It's the same in every discussion about OS vs OS. People who like one OS will claim that the other OS is full of problems, and vice versa. In some cases I guess people are just lucky/unlucky. Personally, I've been using both in parallel for about 15 years, and while I've never had any issues with Windows (no BSODs), Linux constantly gives me problems. But I'm a developer and much prefer to develop on Linux, so I stick with it.
Though I think that is not warranted with respect to my original comment. I have used Linux in some form or shape for 31 years now (jikes), I would love Linux to win, and I have used Linux on a wide variety of hardware (last few laptops have been ThinkPads).
I think desktop Linux will not improve until people start acknowledging the issues and work on it. It's the same as the claim that Linux is very secure (which Linux fans will often repeat), while it has virtually no layered security, and a fairly large part of the community is actively hostile towards such improvements (e.g. fully verified boot).
What's good or bad is subjective. I've seen plenty of (in my opinion) good AI-generated content. But making such a sweeping statement suggests to me that your mind is made up on the topic.