Wow, if these really are worms, they are the worst I've ever seen. Maybe I didn't hang around the Fuji X forums enough.
www.dpreview.com/forums/post/67161814
I wouldn't call them worms. They are more like an offset printing pattern. Fuji Frontier film scanners produced a similar phenomenon. Maybe the boffins at Adobe think this is what people want. How does Topaz Denoise handle it? Pretty well. AI selected Standard, but Clear works better to preserve forest detail. Topaz treatment below.