It's become rather clear that Open source licenses are vulnerable, since defending them costs large amount of money, and proving violations can be hard since by definition the products that break them are closed-source.
Open source for medium and small projects is dead if enforcement is a consideration. Trivial to reimplement in same or other language and give yourself plausible deniability.
Software Freedom Conservancy is at least fighting back.
https://sfconservancy.org/news/2026/may/18/bambu-studio-3d-p...