As far as I'm concerned, AI Generated Content is Free to use as its not protected by Copyright Law.
But I honestly don’t need any 2D or pre generated music. If I do, I can use AI to generate it myself. My design philosophy is to use only 3D and procedural/adaptive/modular/ music in my interactive experiences.
I concur and fear 3D Meshes are the next media to be targeted by AI spammers.
My design philosophy for meshes may offer some protection, I only acquire modular mesh kits/kitbash that support design-time and run-time construction / customization / destruction.
I also only purchase from specific publishers like Stocklancer that have discord communities and show their works in progress.
If I need generic meshes, I’ll look for free meshes in various marketplaces, modify existing mesh, or use AI to generate it myself.
The Marketplace just needs advanced user filtering options.
I have to admit Unity Asset Store has very good User filtering. I’ve used Online Apps with very advanced filtering allowing users to create/save/load/delete/rename their own filters with conditional logic for categories, description keywords, tags, price, publishers, price, dates, and more. I don’t know if the current unrealengine marketplace will get new filtering features. My hopes for Fab is very high.